diff --git a/.gitignore b/.gitignore
index 169b409..5e40fb2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,5 @@
 *.pkey
 *.pem
 coverage.lcov
-coverage.json
\ No newline at end of file
+coverage.json
+imports/
\ No newline at end of file
diff --git a/README.md b/README.md
index 7e571a5..d7080b8 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # Band Oracle Contract
-The Cadence smart contract enabling integration of the Band Protocol Oracle network. The oracle network presently offers the full set of [price quotes](https://data.bandprotocol.com/) from the Band Standard Dataset. These are available for any Cadence applications, contracts or transactions to use and presently charges no fees. 
+The Cadence smart contract enabling integration of the Band Protocol Oracle network. The oracle network presently offers
+the full set of [price quotes](https://data.bandprotocol.com/) from the Band Standard Dataset. These are available for
+any Cadence applications, contracts or transactions to use and presently charges no fees. 
 
 Currently supported cryptocurrency token pairs are: 
 
@@ -29,27 +31,41 @@ To learn more about Band Protocol please refer to: https://faq.bandprotocol.com/
 |[BandOracle](contracts/BandOracle.cdc)|[]()|[0x9fb6606c300b5051](https://contractbrowser.com/A.9fb6606c300b5051.BandOracle)|
 
 ## How it works?
-The contract keeps a record of symbols and the corresponding financial price data for them. While financial data are only updated by authorized BandChain relayers, they can be queried via a script by any user or application on the Flow blockchain.
+The contract keeps a record of symbols and the corresponding financial price data for them. While financial data are
+only updated by authorized BandChain relayers, they can be queried via a script by any user or application on the Flow
+blockchain.
 
 ### Storing the data
-Market for each symbol is stored on a dictionary as a contract level field `access(contract) let symbolsRefData: {String: RefData}`. The `RefData` structs stores the following information: 
+Market for each symbol is stored on a dictionary as a contract level field `access(contract) let symbolsRefData:
+{String: RefData}`. The `RefData` structs stores the following information: 
 ```cadence
-    pub struct RefData {
+    access(all) struct RefData {
         // USD-rate, multiplied by 1e9.
-        pub var rate: UInt64
+        access(all) var rate: UInt64
         // UNIX epoch when data is last resolved. 
-        pub var timestamp: UInt64
+        access(all) var timestamp: UInt64
         // BandChain request identifier for this data.
-        pub var requestID: UInt64
+        access(all) var requestID: UInt64
     }
 ```
-This struct provides the caller with the data received from the oracle network for the symbol in question. Keep in mind that all data is normalized and stored using a USD conversion rate, meaning that conversions into other symbols will derive from that.
+This struct provides the caller with the data received from the oracle network for the symbol in question. Keep in mind
+that all data is normalized and stored using a USD conversion rate, meaning that conversions into other symbols will
+derive from that.
 
 ### Updating the data
-The account where the contract is deployed will be granted an `OracleAdmin` resource. This resource can create `DataUpdater` resources and publish a `{&RelayUpdate}` capability to them. An authorized account - belonging to a relayer - can claim said capability at the time of creating a `Relay` resource. This resource will grant the ability to call the `updateData` method that will call contract function `access(contract) fun updateRefData (symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: UInt64)` which in turn updates the `symbolsRefData` dictionary.
+
+The account where the contract is deployed will be granted an `OracleAdmin` resource. This resource can create
+`DataUpdater` resources and publish a `{&RelayUpdate}` capability to them. An authorized account - belonging to a
+relayer - can claim said capability at the time of creating a `Relay` resource. This resource will grant the ability to
+call the `updateData` method that will call contract function `access(contract) fun updateRefData (symbolsRates:
+{String: UInt64}, resolveTime: UInt64, requestID: UInt64)` which in turn updates the `symbolsRefData` dictionary.
 
 ### Querying the data
-When invoking the public function `pub fun getReferenceData (baseSymbol: String, quoteSymbol: String): RefData?` calling contracts or scripts would be provided the price corresponding to `quoteSymbol` in the `baseSymbol` currency. If there are no entries registered for either the base or quote symbols the function will return `nil`.
+
+When invoking the public function `access(all) fun getReferenceData(baseSymbol: String, quoteSymbol: String, payment:
+@{FungibleToken.Vault}): RefData?` where `payment` contains the balance of `BandOracle.getFee()`. Callers are provided
+the price corresponding to `quoteSymbol` in the `baseSymbol` currency. If there are no entries registered for either the
+base or quote symbols the function will return `nil`.
 
 ### Fees
 
diff --git a/docs/BandOracle.md b/docs/BandOracle.md
index 557c558..8a77e1c 100644
--- a/docs/BandOracle.md
+++ b/docs/BandOracle.md
@@ -1,25 +1,25 @@
 # Contract `BandOracle`
 
 ```cadence
-pub contract BandOracle {
+access(all) contract BandOracle {
 
-    pub let OracleAdminStoragePath: StoragePath
+    access(all) let OracleAdminStoragePath: StoragePath
 
-    pub let OracleAdminPrivatePath: PrivatePath
+    access(all) let OracleAdminPrivatePath: PrivatePath
 
-    pub let RelayStoragePath: StoragePath
+    access(all) let RelayStoragePath: StoragePath
 
-    pub let RelayPrivatePath: PrivatePath
+    access(all) let RelayPrivatePath: PrivatePath
 
-    pub let FeeCollectorStoragePath: StoragePath
+    access(all) let FeeCollectorStoragePath: StoragePath
 
     access(contract) let dataUpdaterPrivateBasePath: String
 
     access(contract) let symbolsRefData: {String: RefData}
 
-    pub let e18: UInt256
+    access(all) let e18: UInt256
 
-    pub let e9: UInt256
+    access(all) let e9: UInt256
 
     access(contract) let payments: FungibleToken.Vault
 
@@ -34,7 +34,7 @@ https://docs.bandchain.org/
 ### `OracleAdmin`
 
 ```cadence
-pub resource interface OracleAdmin {
+access(all) resource interface OracleAdmin {
 }
 ```
 Resources
@@ -47,7 +47,7 @@ Admin only operations.
 ### `DataUpdater`
 
 ```cadence
-pub resource interface DataUpdater {
+access(all) resource interface DataUpdater {
 }
 ```
 Relayer operations.
@@ -60,13 +60,13 @@ Relayer operations.
 ### `RefData`
 
 ```cadence
-pub struct RefData {
+access(all) struct RefData {
 
-    pub var rate: UInt64
+    access(all) var rate: UInt64
 
-    pub var timestamp: UInt64
+    access(all) var timestamp: UInt64
 
-    pub var requestID: UInt64
+    access(all) var requestID: UInt64
 }
 ```
 Structs
@@ -79,15 +79,15 @@ Structure for storing any symbol USD-rate.
 ### `ReferenceData`
 
 ```cadence
-pub struct ReferenceData {
+access(all) struct ReferenceData {
 
-    pub var integerE18Rate: UInt256
+    access(all) var integerE18Rate: UInt256
 
-    pub var fixedPointRate: UFix64
+    access(all) var fixedPointRate: UFix64
 
-    pub var baseTimestamp: UInt64
+    access(all) var baseTimestamp: UInt64
 
-    pub var quoteTimestamp: UInt64
+    access(all) var quoteTimestamp: UInt64
 }
 ```
 Structure for consuming data as quote / base symbols.
@@ -99,7 +99,7 @@ Structure for consuming data as quote / base symbols.
 ### `BandOracleAdmin`
 
 ```cadence
-pub resource BandOracleAdmin {
+access(all) resource BandOracleAdmin {
 }
 ```
 The `BandOracleAdmin` will be created on the contract deployment, and will allow
@@ -112,7 +112,7 @@ the own admin to manage the oracle and the relayers to update prices on it.
 ### `Relay`
 
 ```cadence
-pub resource Relay {
+access(all) resource Relay {
 
     priv let updaterCapability: Capability<&{DataUpdater}>
 }
@@ -126,7 +126,7 @@ The resource that will allow an account to make quote updates
 ### `FeeCollector`
 
 ```cadence
-pub resource FeeCollector {
+access(all) resource FeeCollector {
 }
 ```
 The resource that allows the maintainer account to charge a fee for the use of the oracle.
@@ -139,7 +139,12 @@ The resource that allows the maintainer account to charge a fee for the use of t
 ### `updateRefData()`
 
 ```cadence
-fun updateRefData(symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: UInt64, relayerID: UInt64)
+access(contract) fun updateRefData(
+  symbolsRates: {String: UInt64},
+  resolveTime: UInt64,
+  requestID: UInt64,
+  relayerID: UInt64
+)
 ```
 Functions
 Aux access(contract) functions
@@ -156,7 +161,12 @@ Parameters:
 ### `forceUpdateRefData()`
 
 ```cadence
-fun forceUpdateRefData(symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: UInt64, relayerID: UInt64)
+access(contract) fun forceUpdateRefData(
+  symbolsRates: {String: UInt64},
+  resolveTime: UInt64,
+  requestID: UInt64,
+  relayerID: UInt64
+)
 ```
 Auxiliary private function for the `OracleAdmin` to force update the rates.
 
@@ -171,7 +181,7 @@ Parameters:
 ### `removeSymbol()`
 
 ```cadence
-fun removeSymbol(symbol: String)
+access(contract) fun removeSymbol(symbol: String)
 ```
 Auxiliary private function for removing a stored symbol
 
@@ -183,7 +193,7 @@ Parameters:
 ### `_getRefData()`
 
 ```cadence
-fun _getRefData(symbol: String): RefData?
+access(contract) fun _getRefData(symbol: String): RefData?
 ```
 Auxiliary private function for checking and retrieving data for a given symbol.
 
@@ -197,7 +207,7 @@ Returns: Optional `RefData` struct if there is any quote stored for the requeste
 ### `calculateReferenceData()`
 
 ```cadence
-fun calculateReferenceData(baseRefData: RefData, quoteRefData: RefData): ReferenceData
+access(contract) fun calculateReferenceData(baseRefData: RefData, quoteRefData: RefData): ReferenceData
 ```
 Private function that calculates the reference data between two base and quote symbols.
 
@@ -224,7 +234,7 @@ Parameters:
 ### `collectFees()`
 
 ```cadence
-fun collectFees(): FungibleToken.Vault
+access(all) fun collectFees(): FungibleToken.Vault
 ```
 Private method for the `FeeCollector` to be able to collect the fees from the contract vault.
 
@@ -235,7 +245,7 @@ Returns: A flow token vault with the collected fees so far.
 ### `createRelay()`
 
 ```cadence
-fun createRelay(updaterCapability: Capability<&{DataUpdater}>): Relay
+access(all) fun createRelay(updaterCapability: Capability<&{DataUpdater}>): Relay
 ```
 Public access functions.
 Public method for creating a relay and become a relayer.
@@ -250,7 +260,7 @@ Returns: The new relay resource.
 ### `getUpdaterCapabilityNameFromAddress()`
 
 ```cadence
-fun getUpdaterCapabilityNameFromAddress(relayer: Address): String
+access(all) view fun getUpdaterCapabilityNameFromAddress(relayer: Address): String
 ```
 Auxiliary method to ensure that the formation of the capability name that
 identifies data updater capability for relayers is done in a uniform way
@@ -277,7 +287,11 @@ Returns: The fee to be charged for every request made to the oracle.
 ### `getReferenceData()`
 
 ```cadence
-fun getReferenceData(baseSymbol: String, quoteSymbol: String, payment: FungibleToken.Vault): ReferenceData
+access(all) fun getReferenceData(
+  baseSymbol: String,
+  quoteSymbol: String,
+  payment: @{FungibleToken.Vault}
+): ReferenceData
 ```
 The entry point for consumers to query the oracle in exchange of a fee.
 
@@ -293,7 +307,7 @@ Returns: The `ReferenceData` containing the requested data.
 ### `e18ToFixedPoint()`
 
 ```cadence
-fun e18ToFixedPoint(rate: UInt256): UFix64
+access(all) view fun e18ToFixedPoint(rate: UInt256): UFix64
 ```
 Turn scientific notation numbers as `UInt256` multiplied by e8 into `UFix64`
 fixed point numbers. Exceptionally large integer rates may lose some precision
@@ -310,7 +324,11 @@ Returns: The symbol rate as a decimal.
 ### `BandOracleSymbolsUpdated`
 
 ```cadence
-pub event BandOracleSymbolsUpdated(symbols: [String], relayerID: UInt64, requestID: UInt64)
+access(all) event BandOracleSymbolsUpdated(
+  symbols: [String],
+  relayerID: UInt64,
+  requestID: UInt64
+)
 ```
 
 ---
@@ -318,7 +336,7 @@ pub event BandOracleSymbolsUpdated(symbols: [String], relayerID: UInt64, request
 ### `BandOracleSymbolRemoved`
 
 ```cadence
-pub event BandOracleSymbolRemoved(symbol: String)
+access(all) event BandOracleSymbolRemoved(symbol: String)
 ```
 
 ---
diff --git a/docs/BandOracle_BandOracleAdmin.md b/docs/BandOracle_BandOracleAdmin.md
index c6c158f..98a997d 100644
--- a/docs/BandOracle_BandOracleAdmin.md
+++ b/docs/BandOracle_BandOracleAdmin.md
@@ -1,7 +1,7 @@
 # Resource `BandOracleAdmin`
 
 ```cadence
-pub resource BandOracleAdmin {
+access(all) resource BandOracleAdmin {
 }
 ```
 
@@ -17,7 +17,7 @@ Implemented Interfaces:
 ### `getUpdaterCapabilityPathFromAddress()`
 
 ```cadence
-fun getUpdaterCapabilityPathFromAddress(relayer: Address): PrivatePath
+access(all) fun getUpdaterCapabilityPathFromAddress(relayer: Address): PrivatePath
 ```
 Auxiliary method to ensure that the formation of the capability path that
 identifies relayers is done in a uniform way.
@@ -30,7 +30,7 @@ Parameters:
 ### `removeSymbol()`
 
 ```cadence
-fun removeSymbol(symbol: String)
+access(all) fun removeSymbol(symbol: String)
 ```
 Removes a symbol and its quotes from the contract storage.
 
@@ -42,7 +42,7 @@ Parameters:
 ### `updateData()`
 
 ```cadence
-fun updateData(symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: UInt64, relayerID: UInt64)
+access(all) fun updateData(symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: UInt64, relayerID: UInt64)
 ```
 Relayers can call this method to update rates.
 
@@ -57,7 +57,7 @@ Parameters:
 ### `forceUpdateData()`
 
 ```cadence
-fun forceUpdateData(symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: UInt64, relayerID: UInt64)
+access(all) fun forceUpdateData(symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: UInt64, relayerID: UInt64)
 ```
 Relayers can call this method to force update rates.
 
@@ -72,7 +72,7 @@ Parameters:
 ### `createNewFeeCollector()`
 
 ```cadence
-fun createNewFeeCollector(): FeeCollector
+access(all) fun createNewFeeCollector(): FeeCollector
 ```
 Creates a fee collector, meant to be called once after contract deployment
 for storing the resource on the maintainer's account.
diff --git a/docs/BandOracle_DataUpdater.md b/docs/BandOracle_DataUpdater.md
index c1a87eb..3251046 100644
--- a/docs/BandOracle_DataUpdater.md
+++ b/docs/BandOracle_DataUpdater.md
@@ -1,7 +1,7 @@
 # Resource Interface `DataUpdater`
 
 ```cadence
-pub resource interface DataUpdater {
+access(all) resource interface DataUpdater {
 }
 ```
 
@@ -11,7 +11,12 @@ Relayer operations.
 ### `updateData()`
 
 ```cadence
-fun updateData(symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: UInt64, relayerID: UInt64)
+access(all) fun updateData(
+    symbolsRates: {String: UInt64},
+    resolveTime: UInt64,
+    requestID: UInt64,
+    relayerID: UInt64
+)
 ```
 
 ---
@@ -19,7 +24,12 @@ fun updateData(symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: U
 ### `forceUpdateData()`
 
 ```cadence
-fun forceUpdateData(symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: UInt64, relayerID: UInt64)
+access(all) fun forceUpdateData(
+    symbolsRates: {String: UInt64},
+    resolveTime: UInt64,
+    requestID: UInt64,
+    relayerID: UInt64
+)
 ```
 
 ---
diff --git a/docs/BandOracle_FeeCollector.md b/docs/BandOracle_FeeCollector.md
index e940506..f2ee373 100644
--- a/docs/BandOracle_FeeCollector.md
+++ b/docs/BandOracle_FeeCollector.md
@@ -1,7 +1,7 @@
 # Resource `FeeCollector`
 
 ```cadence
-pub resource FeeCollector {
+access(all) resource FeeCollector {
 }
 ```
 
@@ -11,7 +11,7 @@ The resource that allows the maintainer account to charge a fee for the use of t
 ### `setFee()`
 
 ```cadence
-fun setFee(fee: UFix64)
+access(all) fun setFee(fee: UFix64)
 ```
 Sets the fee in Flow tokens for the oracle use.
 
@@ -23,7 +23,7 @@ Parameters:
 ### `collectFees()`
 
 ```cadence
-fun collectFees(): FungibleToken.Vault
+access(all) fun collectFees(): FungibleToken.Vault
 ```
 Extracts the fees from the contract's vault.
 
diff --git a/docs/BandOracle_OracleAdmin.md b/docs/BandOracle_OracleAdmin.md
index 3d4de28..94dcc3a 100644
--- a/docs/BandOracle_OracleAdmin.md
+++ b/docs/BandOracle_OracleAdmin.md
@@ -1,7 +1,7 @@
 # Resource Interface `OracleAdmin`
 
 ```cadence
-pub resource interface OracleAdmin {
+access(all) resource interface OracleAdmin {
 }
 ```
 
@@ -9,10 +9,26 @@ Resources
 Admin only operations.
 ## Functions
 
-### `getUpdaterCapabilityPathFromAddress()`
+### `setRelayerCapabilityID()`
 
 ```cadence
-fun getUpdaterCapabilityPathFromAddress(relayer: Address): PrivatePath
+access(all) fun setRelayerCapabilityID(relayer: Address, capabilityID: UInt64)
+```
+
+---
+
+### `removeRelayerCapabilityID()`
+
+```cadence
+access(all) fun removeRelayerCapabilityID(relayer: Address)
+```
+
+---
+
+### `getUpdaterCapabilityIDFromAddress()`
+
+```cadence
+access(all) fun getUpdaterCapabilityIDFromAddress(relayer: Address): UInt64?
 ```
 
 ---
@@ -20,7 +36,7 @@ fun getUpdaterCapabilityPathFromAddress(relayer: Address): PrivatePath
 ### `removeSymbol()`
 
 ```cadence
-fun removeSymbol(symbol: String)
+access(all) fun removeSymbol(symbol: String)
 ```
 
 ---
@@ -28,7 +44,7 @@ fun removeSymbol(symbol: String)
 ### `createNewFeeCollector()`
 
 ```cadence
-fun createNewFeeCollector(): BandOracle.FeeCollector
+access(all) fun createNewFeeCollector(): BandOracle.FeeCollector
 ```
 
 ---
diff --git a/docs/BandOracle_RefData.md b/docs/BandOracle_RefData.md
index 7c801c6..194bd59 100644
--- a/docs/BandOracle_RefData.md
+++ b/docs/BandOracle_RefData.md
@@ -1,13 +1,13 @@
 # Struct `RefData`
 
 ```cadence
-pub struct RefData {
+access(all) struct RefData {
 
-    pub var rate: UInt64
+    access(all) var rate: UInt64
 
-    pub var timestamp: UInt64
+    access(all) var timestamp: UInt64
 
-    pub var requestID: UInt64
+    access(all) var requestID: UInt64
 }
 ```
 
diff --git a/docs/BandOracle_ReferenceData.md b/docs/BandOracle_ReferenceData.md
index b7d4c72..b69527e 100644
--- a/docs/BandOracle_ReferenceData.md
+++ b/docs/BandOracle_ReferenceData.md
@@ -1,15 +1,15 @@
 # Struct `ReferenceData`
 
 ```cadence
-pub struct ReferenceData {
+access(all) struct ReferenceData {
 
-    pub var integerE18Rate: UInt256
+    access(all) var integerE18Rate: UInt256
 
-    pub var fixedPointRate: UFix64
+    access(all) var fixedPointRate: UFix64
 
-    pub var baseTimestamp: UInt64
+    access(all) var baseTimestamp: UInt64
 
-    pub var quoteTimestamp: UInt64
+    access(all) var quoteTimestamp: UInt64
 }
 ```
 
diff --git a/docs/BandOracle_Relay.md b/docs/BandOracle_Relay.md
index 2016a36..3287505 100644
--- a/docs/BandOracle_Relay.md
+++ b/docs/BandOracle_Relay.md
@@ -1,7 +1,7 @@
 # Resource `Relay`
 
 ```cadence
-pub resource Relay {
+access(all) resource Relay {
 
     priv let updaterCapability: Capability<&{DataUpdater}>
 }
@@ -21,7 +21,7 @@ init(updaterCapability: Capability<&{DataUpdater}>)
 ### `relayRates()`
 
 ```cadence
-fun relayRates(symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: UInt64)
+access(all) fun relayRates(symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: UInt64)
 ```
 Relay updated rates to the Oracle Admin
 
@@ -35,7 +35,7 @@ Parameters:
 ### `forceRelayRates()`
 
 ```cadence
-fun forceRelayRates(symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: UInt64)
+access(all) fun forceRelayRates(symbolsRates: {String: UInt64}, resolveTime: UInt64, requestID: UInt64)
 ```
 Relay updated rates to the Oracle Admin forcing the update of the symbols even if the `resolveTime` is older than the last update.
 
diff --git a/flow.json b/flow.json
index 011409e..37bb8d1 100644
--- a/flow.json
+++ b/flow.json
@@ -14,6 +14,8 @@
 			"source": "testnet://9a0766d93b6608b7.Burner",
 			"hash": "71af18e227984cd434a3ad00bb2f3618b76482842bae920ee55662c37c8bf331",
 			"aliases": {
+				"emulator": "f8d6e0586b0a20c7",
+				"mainnet": "f233dcee88fe0abe",
 				"testnet": "9a0766d93b6608b7"
 			}
 		},
@@ -23,47 +25,42 @@
 			"aliases": {
 				"emulator": "0ae53cb6e3f42a79",
 				"mainnet": "1654653399040a61",
-				"previewnet": "4445e7ad11568276",
 				"testnet": "7e60df042a9c0868"
 			}
 		},
 		"FungibleToken": {
 			"source": "testnet://9a0766d93b6608b7.FungibleToken",
-			"hash": "154d9000cc0b992664c1d315826a4bc47e744fbc7f2e99daf823e5101945042a",
+			"hash": "d84e41a86bd27806367b89c75a2a9570f7713480ab113cc214c4576466888958",
 			"aliases": {
 				"emulator": "ee82856bf20e2aa6",
 				"mainnet": "f233dcee88fe0abe",
-				"previewnet": "a0225e7000ac82a9",
 				"testnet": "9a0766d93b6608b7"
 			}
 		},
 		"FungibleTokenMetadataViews": {
 			"source": "testnet://9a0766d93b6608b7.FungibleTokenMetadataViews",
-			"hash": "64ec97395c0a3958510ea663563f59d5a6beb7943d69b903db94c11d76be6296",
+			"hash": "085d02742eb50e6200cf2a4ad4551857313513afa7205c1e85f5966547a56df3",
 			"aliases": {
 				"emulator": "ee82856bf20e2aa6",
 				"mainnet": "f233dcee88fe0abe",
-				"previewnet": "a0225e7000ac82a9",
 				"testnet": "9a0766d93b6608b7"
 			}
 		},
 		"MetadataViews": {
 			"source": "testnet://631e88ae7f1d7c20.MetadataViews",
-			"hash": "77e2c3c4afb855af657ecae6611a99acf47a102144c68f4663de42ae700adf5b",
+			"hash": "0b746cabba668c39de9dc47b94fc458f4119cbabb6883616e4a8750518310ccb",
 			"aliases": {
 				"emulator": "f8d6e0586b0a20c7",
 				"mainnet": "1d7e57aa55817448",
-				"previewnet": "b6763b4399a888c8",
 				"testnet": "631e88ae7f1d7c20"
 			}
 		},
 		"NonFungibleToken": {
 			"source": "testnet://631e88ae7f1d7c20.NonFungibleToken",
-			"hash": "ea1b5fa55b6648064c77a6fd83084a3a0be2a6f4386b3b259c89e4f62ab8f6c0",
+			"hash": "ac40c5a3ec05884ae48cb52ebf680deebb21e8a0143cd7d9b1dc88b0f107e088",
 			"aliases": {
 				"emulator": "f8d6e0586b0a20c7",
 				"mainnet": "1d7e57aa55817448",
-				"previewnet": "b6763b4399a888c8",
 				"testnet": "631e88ae7f1d7c20"
 			}
 		},
@@ -73,7 +70,6 @@
 			"aliases": {
 				"emulator": "f8d6e0586b0a20c7",
 				"mainnet": "1d7e57aa55817448",
-				"previewnet": "b6763b4399a888c8",
 				"testnet": "631e88ae7f1d7c20"
 			}
 		}