diff --git a/Cargo.lock b/Cargo.lock
index ef5f22e..fb55ba2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1969,7 +1969,7 @@ checksum = "77c90badedccf4105eca100756a0b1289e191f6fcbdadd3cee1d2f614f97da8f"
 [[package]]
 name = "drift-idl-gen"
 version = "0.2.0"
-source = "git+https://github.com/drift-labs/drift-rs.git?rev=726a2e#726a2e7a7b6fe7d62fe0e6e24e3360b5cb5c2e00"
+source = "git+https://github.com/drift-labs/drift-rs.git?rev=98619f0#98619f02050610928d3b8b2b46bbc8ae336677a7"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1982,7 +1982,7 @@ dependencies = [
 [[package]]
 name = "drift-pubsub-client"
 version = "0.1.1"
-source = "git+https://github.com/drift-labs/drift-rs.git?rev=726a2e#726a2e7a7b6fe7d62fe0e6e24e3360b5cb5c2e00"
+source = "git+https://github.com/drift-labs/drift-rs.git?rev=98619f0#98619f02050610928d3b8b2b46bbc8ae336677a7"
 dependencies = [
  "futures-util",
  "gjson",
@@ -2002,7 +2002,7 @@ dependencies = [
 [[package]]
 name = "drift-rs"
 version = "1.0.0-alpha.16"
-source = "git+https://github.com/drift-labs/drift-rs.git?rev=726a2e#726a2e7a7b6fe7d62fe0e6e24e3360b5cb5c2e00"
+source = "git+https://github.com/drift-labs/drift-rs.git?rev=98619f0#98619f02050610928d3b8b2b46bbc8ae336677a7"
 dependencies = [
  "abi_stable",
  "ahash 0.8.12",
diff --git a/Cargo.toml b/Cargo.toml
index 9914a0d..7beca7e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,7 +26,7 @@ bincode = "1"
 clap = { version = "4.0", features = ["derive"] }
 dashmap = "6.1.0"
 dotenv = "0.15.0"
-drift-rs = { git = "https://github.com/drift-labs/drift-rs.git", rev = "726a2e" }
+drift-rs = { git = "https://github.com/drift-labs/drift-rs.git", rev = "98619f0" }
 ed25519-dalek = "1.0.1"
 env_logger = "0.11"
 faster-hex = "0.10.0"
diff --git a/src/swift_server.rs b/src/swift_server.rs
index ad635de..740169b 100644
--- a/src/swift_server.rs
+++ b/src/swift_server.rs
@@ -1193,15 +1193,24 @@ impl ServerParams {
                 taker_order_params.market_index,
             );
         }
-        let message = tx.place_orders(vec![*taker_order_params]).build();
+
+        // always set fee payer to some other account with SOL
+        // supports privey wallets and how a swift order is intended to be placed anyway
+        let message = tx
+            .place_orders(vec![*taker_order_params])
+            .fee_payer(solana_sdk::pubkey!(
+                "Eiv8eZUWaEPMne8XjA6afzVJ2tJs1BJJ4a1MpZacMSRA"
+            ))
+            .build();
 
         let simulate_result_with_timeout = tokio::time::timeout(
             self.config.simulation_timeout,
             self.drift.rpc().simulate_transaction_with_config(
                 &VersionedTransaction {
                     message,
-                    // must provide a signature for the RPC call to work
-                    signatures: vec![Signature::new_unique()],
+                    // must provide placerholder signature(s) for the RPC call to work
+                    // signer + fee payer
+                    signatures: vec![Signature::new_unique(), Signature::new_unique()],
                 },
                 RpcSimulateTransactionConfig {
                     sig_verify: false,