diff --git a/.changeset/ripe-heads-stop.md b/.changeset/ripe-heads-stop.md
new file mode 100644
index 000000000..e7faeb41c
--- /dev/null
+++ b/.changeset/ripe-heads-stop.md
@@ -0,0 +1,36 @@
+---
+'@xchainjs/xchain-mayachain-query': patch
+'@xchainjs/xchain-thorchain-query': patch
+'@xchainjs/xchain-mayachain': patch
+'@xchainjs/xchain-thorchain': patch
+'@xchainjs/xchain-arbitrum': patch
+'@xchainjs/xchain-ethereum': patch
+'@xchainjs/xchain-litecoin': patch
+'@xchainjs/xchain-bitcoin': patch
+'xchainjs-estimate-swap': patch
+'@xchainjs/xchain-cosmos': patch
+'@xchainjs/xchain-kujira': patch
+'@xchainjs/xchain-wallet': patch
+'@xchainjs/xchain-avax': patch
+'@xchainjs/xchain-base': patch
+'@xchainjs/xchain-doge': patch
+'@xchainjs/xchain-util': patch
+'@xchainjs/xchain-bsc': patch
+'@xchainjs/xchain-evm': patch
+'xchainjs-liquidity': patch
+'xchainjs-check-tx': patch
+'xchainjs-loans': patch
+'txJammer': patch
+---
+
+Fix ESM (ECMAScript Module) compatibility issues
+
+- Update bignumber.js to 9.1.2 for proper ESM support
+- Change bitcore-lib-cash imports from namespace to default imports for ESM compatibility 
+- Change @dashevo/dashcore-lib imports from namespace to default imports for ESM compatibility
+- Add .js extensions to coinselect/accumulative imports for ESM
+- Add .js extensions to cosmjs-types imports for ESM
+- Update module type declarations for ESM compatibility
+- Regenerate protobuf files with correct ESM import patterns
+
+This enables the library to work properly in ESM environments (Node.js type: "module", modern bundlers, etc.)
diff --git a/examples/check-tx/package.json b/examples/check-tx/package.json
index d4ffecf0f..beb7741f3 100644
--- a/examples/check-tx/package.json
+++ b/examples/check-tx/package.json
@@ -20,7 +20,7 @@
     "@xchainjs/xchain-util": "workspace:*",
     "axios": "1.8.4",
     "axios-retry": "^3.2.5",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "rimraf": "~3.0.2"
   },
   "devDependencies": {
diff --git a/examples/estimate-swap/package.json b/examples/estimate-swap/package.json
index dd6a471a9..a83ae24f2 100644
--- a/examples/estimate-swap/package.json
+++ b/examples/estimate-swap/package.json
@@ -22,7 +22,7 @@
     "@xchainjs/xchain-util": "workspace:*",
     "axios": "1.8.4",
     "axios-retry": "^3.2.5",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "rimraf": "~3.0.2"
   },
   "devDependencies": {
diff --git a/examples/liquidity/package.json b/examples/liquidity/package.json
index 2cc4b6101..945d54ab4 100644
--- a/examples/liquidity/package.json
+++ b/examples/liquidity/package.json
@@ -30,7 +30,7 @@
     "@xchainjs/xchain-util": "workspace:*",
     "axios": "1.8.4",
     "axios-retry": "^3.2.5",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "rimraf": "~3.0.2"
   },
   "devDependencies": {
diff --git a/packages/xchain-arbitrum/package.json b/packages/xchain-arbitrum/package.json
index efd6069af..dae72dfb7 100644
--- a/packages/xchain-arbitrum/package.json
+++ b/packages/xchain-arbitrum/package.json
@@ -40,7 +40,7 @@
     "@xchainjs/xchain-evm": "workspace:*",
     "@xchainjs/xchain-evm-providers": "workspace:*",
     "@xchainjs/xchain-util": "workspace:*",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "ethers": "^6.14.3"
   }
 }
diff --git a/packages/xchain-avax/package.json b/packages/xchain-avax/package.json
index 5d5055cf5..628494300 100644
--- a/packages/xchain-avax/package.json
+++ b/packages/xchain-avax/package.json
@@ -41,7 +41,7 @@
     "@xchainjs/xchain-evm": "workspace:*",
     "@xchainjs/xchain-evm-providers": "workspace:*",
     "@xchainjs/xchain-util": "workspace:*",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "ethers": "^6.14.3"
   },
   "devDependencies": {
diff --git a/packages/xchain-base/package.json b/packages/xchain-base/package.json
index 74c1e14f8..deb1fab20 100644
--- a/packages/xchain-base/package.json
+++ b/packages/xchain-base/package.json
@@ -40,7 +40,7 @@
     "@xchainjs/xchain-evm": "workspace:*",
     "@xchainjs/xchain-evm-providers": "workspace:*",
     "@xchainjs/xchain-util": "workspace:*",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "ethers": "^6.14.3"
   },
   "devDependencies": {
diff --git a/packages/xchain-bitcoin/src/client.ts b/packages/xchain-bitcoin/src/client.ts
index cf8720419..d7d565afe 100644
--- a/packages/xchain-bitcoin/src/client.ts
+++ b/packages/xchain-bitcoin/src/client.ts
@@ -3,7 +3,7 @@ import { AssetInfo, FeeRate, Network } from '@xchainjs/xchain-client'
 import { Address } from '@xchainjs/xchain-util'
 import { Client as UTXOClient, PreparedTx, TxParams, UTXO, UtxoClientParams } from '@xchainjs/xchain-utxo'
 import * as Bitcoin from 'bitcoinjs-lib'
-import accumulative from 'coinselect/accumulative'
+import accumulative from 'coinselect/accumulative.js'
 
 import {
   AssetBTC,
diff --git a/packages/xchain-bitcoin/src/modules.d.ts b/packages/xchain-bitcoin/src/modules.d.ts
index 978408eca..8d79111fc 100644
--- a/packages/xchain-bitcoin/src/modules.d.ts
+++ b/packages/xchain-bitcoin/src/modules.d.ts
@@ -1,2 +1,2 @@
-// This statement declares a module augmentation for the external module 'coinselect/accumulative'.
-declare module 'coinselect/accumulative'
+// This statement declares a module augmentation for the external module 'coinselect/accumulative.js'.
+declare module 'coinselect/accumulative.js'
diff --git a/packages/xchain-bitcoincash/src/client.ts b/packages/xchain-bitcoincash/src/client.ts
index c2f7b7016..05a374fac 100644
--- a/packages/xchain-bitcoincash/src/client.ts
+++ b/packages/xchain-bitcoincash/src/client.ts
@@ -1,9 +1,9 @@
 // Import statements for necessary modules and types
-import * as bitcore from 'bitcore-lib-cash'
+import bitcore from 'bitcore-lib-cash'
 import { AssetInfo, FeeRate, Network } from '@xchainjs/xchain-client' // Importing various types and constants from xchain-client module
 import { Address } from '@xchainjs/xchain-util' // Importing the Address type from xchain-util module
 import { Client as UTXOClient, TxParams, UtxoClientParams, UTXO } from '@xchainjs/xchain-utxo' // Importing necessary types and the UTXOClient class from xchain-utxo module
-import accumulative from 'coinselect/accumulative' // Importing accumulative function from coinselect/accumulative module
+import accumulative from 'coinselect/accumulative.js' // Importing accumulative function from coinselect/accumulative.js module
 
 import {
   AssetBCH,
diff --git a/packages/xchain-bitcoincash/src/clientKeystore.ts b/packages/xchain-bitcoincash/src/clientKeystore.ts
index 8e7df8bc6..310e5411c 100644
--- a/packages/xchain-bitcoincash/src/clientKeystore.ts
+++ b/packages/xchain-bitcoincash/src/clientKeystore.ts
@@ -1,4 +1,4 @@
-import * as bitcore from 'bitcore-lib-cash'
+import bitcore from 'bitcore-lib-cash'
 import { FeeOption, FeeRate, TxHash, checkFeeBounds } from '@xchainjs/xchain-client' // Importing getSeed function from xchain-crypto module
 import { getSeed } from '@xchainjs/xchain-crypto' // Importing the Address type from xchain-util module
 import { Address } from '@xchainjs/xchain-util' // Importing necessary types from bitcoincashjs-types module
diff --git a/packages/xchain-bitcoincash/src/modules.d.ts b/packages/xchain-bitcoincash/src/modules.d.ts
index 5b0d366a0..81908826c 100644
--- a/packages/xchain-bitcoincash/src/modules.d.ts
+++ b/packages/xchain-bitcoincash/src/modules.d.ts
@@ -1,6 +1,6 @@
 /**
- * Declaration file for the 'coinselect/accumulative' module.
+ * Declaration file for the 'coinselect/accumulative.js' module.
  * This module likely provides functions or utilities related to coin selection algorithms,
  * specifically the 'accumulative' algorithm.
  */
-declare module 'coinselect/accumulative'
+declare module 'coinselect/accumulative.js'
diff --git a/packages/xchain-bitcoincash/src/utils.ts b/packages/xchain-bitcoincash/src/utils.ts
index a2adb3f9f..10aea8e6e 100644
--- a/packages/xchain-bitcoincash/src/utils.ts
+++ b/packages/xchain-bitcoincash/src/utils.ts
@@ -5,7 +5,7 @@ import { Network, TxType } from '@xchainjs/xchain-client' // Importing types rel
 import { Address, baseAmount } from '@xchainjs/xchain-util' // Importing utilities related to addresses and amounts
 import { Tx, TxFrom, TxTo } from '@xchainjs/xchain-utxo' // Importing Bitcoin Cash address utilities
 import * as bchaddr from './bchaddrjs' // Importing coin information utility
-import * as bitcore from 'bitcore-lib-cash'
+import bitcore from 'bitcore-lib-cash'
 import { AssetBCH, BCH_DECIMAL } from './const' // Importing BCH asset and decimal constants
 import { Transaction, TransactionInput, TransactionOutput } from './types' // Importing custom transaction types
 
diff --git a/packages/xchain-bsc/package.json b/packages/xchain-bsc/package.json
index 3a85ae541..40f0d6f7d 100644
--- a/packages/xchain-bsc/package.json
+++ b/packages/xchain-bsc/package.json
@@ -41,7 +41,7 @@
     "@xchainjs/xchain-evm": "workspace:*",
     "@xchainjs/xchain-evm-providers": "workspace:*",
     "@xchainjs/xchain-util": "workspace:*",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "ethers": "^6.14.3"
   }
 }
diff --git a/packages/xchain-cosmos/package.json b/packages/xchain-cosmos/package.json
index 9d55ffad0..a1c6b48fa 100644
--- a/packages/xchain-cosmos/package.json
+++ b/packages/xchain-cosmos/package.json
@@ -47,7 +47,7 @@
     "@xchainjs/xchain-crypto": "workspace:*",
     "@xchainjs/xchain-util": "workspace:*",
     "axios": "1.8.4",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "cosmjs-types": "0.9.0",
     "protobufjs": "6.11.4"
   },
diff --git a/packages/xchain-cosmos/src/client.ts b/packages/xchain-cosmos/src/client.ts
index 66548155e..d0efd000b 100644
--- a/packages/xchain-cosmos/src/client.ts
+++ b/packages/xchain-cosmos/src/client.ts
@@ -12,7 +12,7 @@ import { AssetInfo, FeeType, Fees, PreparedTx, singleFee } from '@xchainjs/xchai
 import { Client as CosmosSDKClient, CosmosSdkClientParams, MsgTypes, makeClientPath } from '@xchainjs/xchain-cosmos-sdk'
 import { Address, Asset, AssetType, baseAmount, eqAsset } from '@xchainjs/xchain-util'
 import BigNumber from 'bignumber.js'
-import { TxRaw } from 'cosmjs-types/cosmos/tx/v1beta1/tx'
+import { TxRaw } from 'cosmjs-types/cosmos/tx/v1beta1/tx.js'
 
 import {
   AssetATOM,
diff --git a/packages/xchain-dash/src/client.ts b/packages/xchain-dash/src/client.ts
index c043a3e31..62f1692c4 100644
--- a/packages/xchain-dash/src/client.ts
+++ b/packages/xchain-dash/src/client.ts
@@ -1,4 +1,4 @@
-import * as dashcore from '@dashevo/dashcore-lib'
+import dashcore from '@dashevo/dashcore-lib'
 import { AssetInfo, FeeRate, Network, TxHistoryParams, TxType } from '@xchainjs/xchain-client'
 import { Address, assetAmount, assetToBase, baseAmount } from '@xchainjs/xchain-util'
 import { Balance, Client as UTXOClient, Tx, TxParams, TxsPage, UTXO, UtxoClientParams } from '@xchainjs/xchain-utxo'
diff --git a/packages/xchain-dash/src/clientKeystore.ts b/packages/xchain-dash/src/clientKeystore.ts
index 7b987abb6..c9f52b9df 100644
--- a/packages/xchain-dash/src/clientKeystore.ts
+++ b/packages/xchain-dash/src/clientKeystore.ts
@@ -1,5 +1,5 @@
 import * as ecc from '@bitcoin-js/tiny-secp256k1-asmjs'
-import * as dashcore from '@dashevo/dashcore-lib'
+import dashcore from '@dashevo/dashcore-lib'
 import { Transaction } from '@dashevo/dashcore-lib/typings/transaction/Transaction'
 import { FeeOption, FeeRate, TxHash, checkFeeBounds } from '@xchainjs/xchain-client'
 import { getSeed } from '@xchainjs/xchain-crypto'
diff --git a/packages/xchain-dash/src/clientLedger.ts b/packages/xchain-dash/src/clientLedger.ts
index 824a2a1fe..e67c6c790 100644
--- a/packages/xchain-dash/src/clientLedger.ts
+++ b/packages/xchain-dash/src/clientLedger.ts
@@ -1,4 +1,4 @@
-import * as dashcore from '@dashevo/dashcore-lib'
+import dashcore from '@dashevo/dashcore-lib'
 import AppBtc from '@ledgerhq/hw-app-btc'
 import type { Transaction as LedgerTransaction } from '@ledgerhq/hw-app-btc/lib/types'
 import { FeeOption, FeeRate, TxHash, checkFeeBounds } from '@xchainjs/xchain-client'
diff --git a/packages/xchain-dash/src/modules.d copy.ts b/packages/xchain-dash/src/modules.d copy.ts
deleted file mode 100644
index 371ffa133..000000000
--- a/packages/xchain-dash/src/modules.d copy.ts	
+++ /dev/null
@@ -1 +0,0 @@
-declare module 'coinselect/accumulative'
diff --git a/packages/xchain-dash/src/modules.d.ts b/packages/xchain-dash/src/modules.d.ts
index 81e1852b0..7d9a8c805 100644
--- a/packages/xchain-dash/src/modules.d.ts
+++ b/packages/xchain-dash/src/modules.d.ts
@@ -1 +1,2 @@
 declare module '@dashevo/dashcore-lib'
+declare module 'coinselect/accumulative.js'
diff --git a/packages/xchain-dash/src/utils.ts b/packages/xchain-dash/src/utils.ts
index 9d420a9c6..33cca0720 100644
--- a/packages/xchain-dash/src/utils.ts
+++ b/packages/xchain-dash/src/utils.ts
@@ -7,7 +7,7 @@ import { FeeRate, Network } from '@xchainjs/xchain-client'
 import { Address } from '@xchainjs/xchain-util'
 import { TxParams, UTXO, toBitcoinJS } from '@xchainjs/xchain-utxo'
 import * as Dash from 'bitcoinjs-lib'
-import accumulative from 'coinselect/accumulative'
+import accumulative from 'coinselect/accumulative.js'
 
 import * as insight from './insight-api'
 
diff --git a/packages/xchain-doge/src/client.ts b/packages/xchain-doge/src/client.ts
index e7663ae0b..a2b33b411 100644
--- a/packages/xchain-doge/src/client.ts
+++ b/packages/xchain-doge/src/client.ts
@@ -2,7 +2,7 @@ import { AssetInfo, FeeRate, Network } from '@xchainjs/xchain-client'
 import { Address } from '@xchainjs/xchain-util'
 import { Client as UTXOClient, PreparedTx, TxParams, UTXO, UtxoClientParams } from '@xchainjs/xchain-utxo'
 import * as Dogecoin from 'bitcoinjs-lib'
-import accumulative from 'coinselect/accumulative'
+import accumulative from 'coinselect/accumulative.js'
 
 import {
   AssetDOGE,
diff --git a/packages/xchain-doge/src/modules.d.ts b/packages/xchain-doge/src/modules.d.ts
index ef1bf771a..548558265 100644
--- a/packages/xchain-doge/src/modules.d.ts
+++ b/packages/xchain-doge/src/modules.d.ts
@@ -1,7 +1,7 @@
 /**
- * Declaration file for the 'coinselect/accumulative' module.
+ * Declaration file for the 'coinselect/accumulative.js' module.
  *
- * 'coinselect/accumulative' is a module used for selecting and accumulating unspent transaction outputs (UTXOs).
+ * 'coinselect/accumulative.js' is a module used for selecting and accumulating unspent transaction outputs (UTXOs).
  * This declaration file allows TypeScript to recognize and properly handle the module.
  */
-declare module 'coinselect/accumulative'
+declare module 'coinselect/accumulative.js'
diff --git a/packages/xchain-ethereum/package.json b/packages/xchain-ethereum/package.json
index 8595dcfdb..bb6fd8940 100644
--- a/packages/xchain-ethereum/package.json
+++ b/packages/xchain-ethereum/package.json
@@ -41,7 +41,7 @@
     "@xchainjs/xchain-evm": "workspace:*",
     "@xchainjs/xchain-evm-providers": "workspace:*",
     "@xchainjs/xchain-util": "workspace:*",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "ethers": "^6.14.3"
   }
 }
diff --git a/packages/xchain-evm/package.json b/packages/xchain-evm/package.json
index e5ebec0b1..be67f0654 100644
--- a/packages/xchain-evm/package.json
+++ b/packages/xchain-evm/package.json
@@ -41,7 +41,7 @@
     "@xchainjs/xchain-crypto": "workspace:*",
     "@xchainjs/xchain-evm-providers": "workspace:*",
     "@xchainjs/xchain-util": "workspace:*",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "ethers": "^6.14.3"
   },
   "devDependencies": {
diff --git a/packages/xchain-kujira/src/client.ts b/packages/xchain-kujira/src/client.ts
index f1e729306..6d1080c40 100644
--- a/packages/xchain-kujira/src/client.ts
+++ b/packages/xchain-kujira/src/client.ts
@@ -14,7 +14,7 @@ import { getSeed } from '@xchainjs/xchain-crypto'
 import { Address, AssetType, eqAsset } from '@xchainjs/xchain-util'
 import { bech32 } from '@scure/base'
 import { HDKey } from '@scure/bip32'
-import { TxRaw } from 'cosmjs-types/cosmos/tx/v1beta1/tx'
+import { TxRaw } from 'cosmjs-types/cosmos/tx/v1beta1/tx.js'
 import { createHash } from 'crypto'
 import * as secp from '@bitcoin-js/tiny-secp256k1-asmjs'
 
diff --git a/packages/xchain-litecoin/src/client.ts b/packages/xchain-litecoin/src/client.ts
index 2a1693f59..8626ed7a3 100644
--- a/packages/xchain-litecoin/src/client.ts
+++ b/packages/xchain-litecoin/src/client.ts
@@ -2,7 +2,7 @@ import { AssetInfo, FeeRate, Network } from '@xchainjs/xchain-client'
 import { Address } from '@xchainjs/xchain-util'
 import { Client as UTXOClient, PreparedTx, TxParams, UTXO, UtxoClientParams } from '@xchainjs/xchain-utxo'
 import * as Litecoin from 'bitcoinjs-lib'
-import accumulative from 'coinselect/accumulative'
+import accumulative from 'coinselect/accumulative.js'
 
 import {
   AssetLTC,
diff --git a/packages/xchain-litecoin/src/modules.d.ts b/packages/xchain-litecoin/src/modules.d.ts
index 9089ceea2..159198557 100644
--- a/packages/xchain-litecoin/src/modules.d.ts
+++ b/packages/xchain-litecoin/src/modules.d.ts
@@ -1,5 +1,5 @@
 /**
- * Declaration file for the 'coinselect/accumulative' module.
+ * Declaration file for the 'coinselect/accumulative.js' module.
  * This module is used for selecting UTXOs for transactions.
  */
-declare module 'coinselect/accumulative'
+declare module 'coinselect/accumulative.js'
diff --git a/packages/xchain-mayachain-query/package.json b/packages/xchain-mayachain-query/package.json
index 4e7885e12..505b9cc59 100644
--- a/packages/xchain-mayachain-query/package.json
+++ b/packages/xchain-mayachain-query/package.json
@@ -40,7 +40,7 @@
     "@xchainjs/xchain-util": "workspace:*",
     "axios": "1.8.4",
     "axios-retry": "3.2.5",
-    "bignumber.js": "^9.0.0"
+    "bignumber.js": "^9.1.2"
   },
   "devDependencies": {
     "axios-mock-adapter": "2.1.0"
diff --git a/packages/xchain-mayachain/genMsgs.sh b/packages/xchain-mayachain/genMsgs.sh
index 7082af057..d13e984e8 100755
--- a/packages/xchain-mayachain/genMsgs.sh
+++ b/packages/xchain-mayachain/genMsgs.sh
@@ -17,6 +17,8 @@ tput setaf 2
 echo "Generating $MSG_COMPILED_OUTPUTFILE"
 tput sgr0
 yarn run pbjs -w commonjs -t static-module $TMP_DIR/mayanode/proto/mayachain/v1/common/common.proto $TMP_DIR/mayanode/proto/mayachain/v1/x/mayachain/types/msg_deposit.proto $TMP_DIR/mayanode/proto/mayachain/v1/x/mayachain/types/msg_send.proto $TMP_DIR/mayanode/third_party/proto/cosmos/base/v1beta1/coin.proto -o $MSG_COMPILED_OUTPUTFILE
+# Fix import to be ESM-compatible (no omitted file extension)
+sed -i -E 's|"(protobufjs/minimal)"|"\1.js"|' "$MSG_COMPILED_OUTPUTFILE"
 
 tput setaf 2
 echo "Generating $MSG_COMPILED_TYPES_OUTPUTFILE"
diff --git a/packages/xchain-mayachain/package.json b/packages/xchain-mayachain/package.json
index c470f6980..6647f8550 100644
--- a/packages/xchain-mayachain/package.json
+++ b/packages/xchain-mayachain/package.json
@@ -47,7 +47,7 @@
     "@xchainjs/xchain-crypto": "workspace:*",
     "@xchainjs/xchain-util": "workspace:*",
     "axios": "1.8.4",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "cosmjs-types": "0.9.0",
     "protobufjs": "6.11.4"
   },
diff --git a/packages/xchain-mayachain/src/client.ts b/packages/xchain-mayachain/src/client.ts
index fd598396b..be6463a83 100644
--- a/packages/xchain-mayachain/src/client.ts
+++ b/packages/xchain-mayachain/src/client.ts
@@ -22,7 +22,7 @@ import { Address, BaseAmount, assetFromString, eqAsset, isSynthAsset } from '@xc
 import { bech32 } from '@scure/base'
 import BigNumber from 'bignumber.js'
 import { HDKey } from '@scure/bip32'
-import { TxRaw } from 'cosmjs-types/cosmos/tx/v1beta1/tx'
+import { TxRaw } from 'cosmjs-types/cosmos/tx/v1beta1/tx.js'
 import { createHash } from 'crypto'
 import * as secp from '@bitcoin-js/tiny-secp256k1-asmjs'
 
diff --git a/packages/xchain-mayachain/src/types/proto/MsgCompiled.js b/packages/xchain-mayachain/src/types/proto/MsgCompiled.js
index 3e72884ca..24b3c6194 100644
--- a/packages/xchain-mayachain/src/types/proto/MsgCompiled.js
+++ b/packages/xchain-mayachain/src/types/proto/MsgCompiled.js
@@ -1,7 +1,7 @@
 /*eslint-disable block-scoped-var, id-length, no-control-regex, no-magic-numbers, no-prototype-builtins, no-redeclare, no-shadow, no-var, sort-vars*/
 "use strict";
 
-var $protobuf = require("protobufjs/minimal");
+var $protobuf = require("protobufjs/minimal.js");
 
 // Common aliases
 var $Reader = $protobuf.Reader, $Writer = $protobuf.Writer, $util = $protobuf.util;
diff --git a/packages/xchain-radix/__tests__/client.test.ts b/packages/xchain-radix/__tests__/client.test.ts
index f2ba97693..4afb7431d 100644
--- a/packages/xchain-radix/__tests__/client.test.ts
+++ b/packages/xchain-radix/__tests__/client.test.ts
@@ -10,6 +10,7 @@ import { Balance, Fees, Network, XChainClientParams } from '@xchainjs/xchain-cli
 import { AssetType, baseAmount } from '@xchainjs/xchain-util'
 
 import { generateMnemonic } from 'bip39'
+import { jest } from '@jest/globals'
 
 import {
   mockCommittedDetailsResponse,
diff --git a/packages/xchain-thorchain-query/package.json b/packages/xchain-thorchain-query/package.json
index 07d2d5906..fa45c5a79 100644
--- a/packages/xchain-thorchain-query/package.json
+++ b/packages/xchain-thorchain-query/package.json
@@ -39,7 +39,7 @@
     "@xchainjs/xchain-util": "workspace:*",
     "axios": "1.8.4",
     "axios-retry": "3.2.5",
-    "bignumber.js": "^9.0.0"
+    "bignumber.js": "^9.1.2"
   },
   "devDependencies": {
     "axios-mock-adapter": "2.1.0"
diff --git a/packages/xchain-thorchain/genMsgs.sh b/packages/xchain-thorchain/genMsgs.sh
index 89340c6ae..316a09bab 100755
--- a/packages/xchain-thorchain/genMsgs.sh
+++ b/packages/xchain-thorchain/genMsgs.sh
@@ -41,6 +41,9 @@ yarn pbjs -w commonjs -t static-module \
   "$TMP_DIR/thornode/third_party/proto/cosmos/base/v1beta1/coin.proto" \
   -o "$MSG_COMPILED_OUTPUTFILE" 2>pbjs_errors.txt
 
+# Fix import to be ESM-compatible (no omitted file extension)
+sed -i -E 's|"(protobufjs/minimal)"|"\1.js"|' "$MSG_COMPILED_OUTPUTFILE"
+
 # Generate TypeScript definitions with explicit namespace
 tput setaf 2
 echo "Generating $MSG_COMPILED_TYPES_OUTPUTFILE"
diff --git a/packages/xchain-thorchain/package.json b/packages/xchain-thorchain/package.json
index e9f7c28f2..ea3ba05e4 100644
--- a/packages/xchain-thorchain/package.json
+++ b/packages/xchain-thorchain/package.json
@@ -50,7 +50,7 @@
     "@xchainjs/xchain-crypto": "workspace:*",
     "@xchainjs/xchain-util": "workspace:*",
     "axios": "1.8.4",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "cosmjs-types": "0.9.0",
     "protobufjs": "6.11.4"
   },
diff --git a/packages/xchain-thorchain/src/client.ts b/packages/xchain-thorchain/src/client.ts
index 07f8743ac..1a93222c9 100644
--- a/packages/xchain-thorchain/src/client.ts
+++ b/packages/xchain-thorchain/src/client.ts
@@ -13,7 +13,7 @@ import {
   bech32ToBase64,
 } from '@xchainjs/xchain-cosmos-sdk'
 import { Address, assetFromString, eqAsset } from '@xchainjs/xchain-util'
-import { TxRaw } from 'cosmjs-types/cosmos/tx/v1beta1/tx'
+import { TxRaw } from 'cosmjs-types/cosmos/tx/v1beta1/tx.js'
 
 /**
  * Import constants and types
diff --git a/packages/xchain-thorchain/src/clientKeystore.ts b/packages/xchain-thorchain/src/clientKeystore.ts
index d5bdda36f..fe051c769 100644
--- a/packages/xchain-thorchain/src/clientKeystore.ts
+++ b/packages/xchain-thorchain/src/clientKeystore.ts
@@ -13,7 +13,7 @@ import { BaseAmount } from '@xchainjs/xchain-util'
 import { bech32 } from '@scure/base'
 import BigNumber from 'bignumber.js'
 import { HDKey } from '@scure/bip32'
-import { TxRaw } from 'cosmjs-types/cosmos/tx/v1beta1/tx'
+import { TxRaw } from 'cosmjs-types/cosmos/tx/v1beta1/tx.js'
 import { createHash } from 'crypto'
 import * as secp from '@bitcoin-js/tiny-secp256k1-asmjs'
 
diff --git a/packages/xchain-thorchain/src/clientLedger.ts b/packages/xchain-thorchain/src/clientLedger.ts
index cefa7ae86..27093d385 100644
--- a/packages/xchain-thorchain/src/clientLedger.ts
+++ b/packages/xchain-thorchain/src/clientLedger.ts
@@ -7,8 +7,8 @@ import THORChainApp, { extractSignatureFromTLV } from '@xchainjs/ledger-thorchai
 import { CompatibleAsset, base64ToBech32, bech32ToBase64 } from '@xchainjs/xchain-cosmos-sdk'
 import { assetFromStringEx, assetToString } from '@xchainjs/xchain-util'
 import BigNumber from 'bignumber.js'
-import { SignMode } from 'cosmjs-types/cosmos/tx/signing/v1beta1/signing'
-import { TxRaw } from 'cosmjs-types/cosmos/tx/v1beta1/tx'
+import { SignMode } from 'cosmjs-types/cosmos/tx/signing/v1beta1/signing.js'
+import { TxRaw } from 'cosmjs-types/cosmos/tx/v1beta1/tx.js'
 
 import { Client, ThorchainClientParams } from './client'
 import { AssetRuneNative, DEPOSIT_GAS_LIMIT_VALUE, defaultClientConfig } from './const'
diff --git a/packages/xchain-thorchain/src/types/proto/MsgCompiled.js b/packages/xchain-thorchain/src/types/proto/MsgCompiled.js
index b2ebddc85..403f2edd3 100644
--- a/packages/xchain-thorchain/src/types/proto/MsgCompiled.js
+++ b/packages/xchain-thorchain/src/types/proto/MsgCompiled.js
@@ -1,7 +1,7 @@
 /*eslint-disable block-scoped-var, id-length, no-control-regex, no-magic-numbers, no-prototype-builtins, no-redeclare, no-shadow, no-var, sort-vars*/
 "use strict";
 
-var $protobuf = require("protobufjs/minimal");
+var $protobuf = require("protobufjs/minimal.js");
 
 // Common aliases
 var $Reader = $protobuf.Reader, $Writer = $protobuf.Writer, $util = $protobuf.util;
diff --git a/packages/xchain-util/package.json b/packages/xchain-util/package.json
index 84667daec..b61ba2605 100755
--- a/packages/xchain-util/package.json
+++ b/packages/xchain-util/package.json
@@ -31,7 +31,7 @@
     "lint": "eslint \"{src,__tests__}/**/*.ts\" --fix --max-warnings 0"
   },
   "dependencies": {
-    "bignumber.js": "^9.0.0"
+    "bignumber.js": "^9.1.2"
   },
   "publishConfig": {
     "access": "public",
diff --git a/packages/xchain-wallet/package.json b/packages/xchain-wallet/package.json
index 6ee99fe06..acea2a965 100644
--- a/packages/xchain-wallet/package.json
+++ b/packages/xchain-wallet/package.json
@@ -36,7 +36,7 @@
     "@xchainjs/xchain-thorchain": "workspace:*",
     "@xchainjs/xchain-util": "workspace:*",
     "@xchainjs/xchain-utxo": "workspace:*",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "ethers": "^6.14.3"
   },
   "devDependencies": {
diff --git a/tools/txJammer/package.json b/tools/txJammer/package.json
index a809392b9..d48bbebe2 100644
--- a/tools/txJammer/package.json
+++ b/tools/txJammer/package.json
@@ -31,7 +31,7 @@
     "@xchainjs/xchain-thornode": "workspace:*",
     "@xchainjs/xchain-util": "workspace:*",
     "@xchainjs/xchain-wallet": "workspace:*",
-    "bignumber.js": "^9.0.0",
+    "bignumber.js": "^9.1.2",
     "commander": "^9.4.1",
     "weighted": "^1.0.0"
   }
diff --git a/yarn.lock b/yarn.lock
index 43807c1c0..d47a118e6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3829,7 +3829,7 @@ __metadata:
     "@xchainjs/xchain-evm": "workspace:*"
     "@xchainjs/xchain-evm-providers": "workspace:*"
     "@xchainjs/xchain-util": "workspace:*"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     ethers: "npm:^6.14.3"
   languageName: unknown
   linkType: soft
@@ -3844,7 +3844,7 @@ __metadata:
     "@xchainjs/xchain-evm": "workspace:*"
     "@xchainjs/xchain-evm-providers": "workspace:*"
     "@xchainjs/xchain-util": "workspace:*"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     ethers: "npm:^6.14.3"
   languageName: unknown
   linkType: soft
@@ -3858,7 +3858,7 @@ __metadata:
     "@xchainjs/xchain-evm": "workspace:*"
     "@xchainjs/xchain-evm-providers": "workspace:*"
     "@xchainjs/xchain-util": "workspace:*"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     ethers: "npm:^6.14.3"
   languageName: unknown
   linkType: soft
@@ -3916,7 +3916,7 @@ __metadata:
     "@xchainjs/xchain-evm": "workspace:*"
     "@xchainjs/xchain-evm-providers": "workspace:*"
     "@xchainjs/xchain-util": "workspace:*"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     ethers: "npm:^6.14.3"
   languageName: unknown
   linkType: soft
@@ -3982,7 +3982,7 @@ __metadata:
     "@xchainjs/xchain-crypto": "workspace:*"
     "@xchainjs/xchain-util": "workspace:*"
     axios: "npm:1.8.4"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     cosmjs-types: "npm:0.9.0"
     protobufjs: "npm:6.11.4"
   languageName: unknown
@@ -4052,7 +4052,7 @@ __metadata:
     "@xchainjs/xchain-evm": "workspace:*"
     "@xchainjs/xchain-evm-providers": "workspace:*"
     "@xchainjs/xchain-util": "workspace:*"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     ethers: "npm:^6.14.3"
   languageName: unknown
   linkType: soft
@@ -4082,7 +4082,7 @@ __metadata:
     "@xchainjs/xchain-util": "workspace:*"
     axios: "npm:^1.8.4"
     axios-mock-adapter: "npm:^2.1.0"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     ethers: "npm:^6.14.3"
   languageName: unknown
   linkType: soft
@@ -4166,7 +4166,7 @@ __metadata:
     axios: "npm:1.8.4"
     axios-mock-adapter: "npm:2.1.0"
     axios-retry: "npm:3.2.5"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
   languageName: unknown
   linkType: soft
 
@@ -4187,7 +4187,7 @@ __metadata:
     "@xchainjs/xchain-crypto": "workspace:*"
     "@xchainjs/xchain-util": "workspace:*"
     axios: "npm:1.8.4"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     cosmjs-types: "npm:0.9.0"
     protobufjs: "npm:6.11.4"
   languageName: unknown
@@ -4334,7 +4334,7 @@ __metadata:
     axios: "npm:1.8.4"
     axios-mock-adapter: "npm:2.1.0"
     axios-retry: "npm:3.2.5"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
   languageName: unknown
   linkType: soft
 
@@ -4358,7 +4358,7 @@ __metadata:
     "@xchainjs/xchain-crypto": "workspace:*"
     "@xchainjs/xchain-util": "workspace:*"
     axios: "npm:1.8.4"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     cosmjs-types: "npm:0.9.0"
     protobufjs: "npm:6.11.4"
   languageName: unknown
@@ -4378,7 +4378,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@xchainjs/xchain-util@workspace:packages/xchain-util"
   dependencies:
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
   languageName: unknown
   linkType: soft
 
@@ -4418,7 +4418,7 @@ __metadata:
     "@xchainjs/xchain-thorchain": "workspace:*"
     "@xchainjs/xchain-util": "workspace:*"
     "@xchainjs/xchain-utxo": "workspace:*"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     ethers: "npm:^6.14.3"
   languageName: unknown
   linkType: soft
@@ -12542,7 +12542,7 @@ __metadata:
     "@xchainjs/xchain-thornode": "workspace:*"
     "@xchainjs/xchain-util": "workspace:*"
     "@xchainjs/xchain-wallet": "workspace:*"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     commander: "npm:^9.4.1"
     weighted: "npm:^1.0.0"
   languageName: unknown
@@ -13296,7 +13296,7 @@ __metadata:
     "@xchainjs/xchain-util": "workspace:*"
     axios: "npm:1.8.4"
     axios-retry: "npm:^3.2.5"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     rimraf: "npm:~3.0.2"
     ts-node: "npm:10.9.2"
     typescript: "npm:^5.8.3"
@@ -13357,7 +13357,7 @@ __metadata:
     "@xchainjs/xchain-util": "workspace:*"
     axios: "npm:1.8.4"
     axios-retry: "npm:^3.2.5"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     rimraf: "npm:~3.0.2"
     ts-node: "npm:10.9.2"
     typescript: "npm:^5.8.3"
@@ -13379,7 +13379,7 @@ __metadata:
     "@xchainjs/xchain-util": "workspace:*"
     axios: "npm:1.8.4"
     axios-retry: "npm:^3.2.5"
-    bignumber.js: "npm:^9.0.0"
+    bignumber.js: "npm:^9.1.2"
     rimraf: "npm:~3.0.2"
     ts-node: "npm:10.9.2"
     typescript: "npm:^5.8.3"