diff --git a/build/fee.js b/build/fee.js
index 9f67849837d300b9187252d68fe0b6920ea6f37a..2560eebaaaec93f668ec64970a71f621cdc44510 100644
--- a/build/fee.js
+++ b/build/fee.js
@@ -1,8 +1,8 @@
-"use strict";
-Object.defineProperty(exports, "__esModule", { value: true });
-exports.calculateFee = exports.GasPrice = void 0;
-const math_1 = require("@cosmjs/math");
-const proto_signing_1 = require("@cosmjs/proto-signing");
+"use strict"
+Object.defineProperty(exports, "__esModule", { value: true })
+exports.calculateFee = exports.GasPrice = void 0
+const math_1 = require("@cosmjs/math")
+const proto_signing_1 = require("@cosmjs/proto-signing")
 /**
  * Denom checker for the Cosmos SDK 0.42 denom pattern
  * (https://github.com/cosmos/cosmos-sdk/blob/v0.42.4/types/coin.go#L599-L601).
@@ -10,58 +10,58 @@ const proto_signing_1 = require("@cosmjs/proto-signing");
  * This is like a regexp but with helpful error messages.
  */
 function checkDenom(denom) {
-    if (denom.length < 3 || denom.length > 128) {
-        throw new Error("Denom must be between 3 and 128 characters");
-    }
+  if (denom.length < 2 || denom.length > 128) {
+    throw new Error("Denom must be between 2 and 128 characters")
+  }
 }
 /**
  * A gas price, i.e. the price of a single unit of gas. This is typically a fraction of
  * the smallest fee token unit, such as 0.012utoken.
  */
 class GasPrice {
-    constructor(amount, denom) {
-        this.amount = amount;
-        this.denom = denom;
-    }
-    /**
-     * Parses a gas price formatted as `<amount><denom>`, e.g. `GasPrice.fromString("0.012utoken")`.
-     *
-     * The denom must match the Cosmos SDK 0.42 pattern (https://github.com/cosmos/cosmos-sdk/blob/v0.42.4/types/coin.go#L599-L601).
-     * See `GasPrice` in @cosmjs/stargate for a more generic matcher.
-     *
-     * Separators are not yet supported.
-     */
-    static fromString(gasPrice) {
-        // Use Decimal.fromUserInput and checkDenom for detailed checks and helpful error messages
-        const matchResult = gasPrice.match(/^([0-9.]+)([a-zA-Z][a-zA-Z0-9/:._-]*)$/);
-        if (!matchResult) {
-            throw new Error("Invalid gas price string");
-        }
-        const [_, amount, denom] = matchResult;
-        checkDenom(denom);
-        const fractionalDigits = 18;
-        const decimalAmount = math_1.Decimal.fromUserInput(amount, fractionalDigits);
-        return new GasPrice(decimalAmount, denom);
-    }
-    /**
-     * Returns a string representation of this gas price, e.g. "0.025uatom".
-     * This can be used as an input to `GasPrice.fromString`.
-     */
-    toString() {
-        return this.amount.toString() + this.denom;
+  constructor(amount, denom) {
+    this.amount = amount
+    this.denom = denom
+  }
+  /**
+   * Parses a gas price formatted as `<amount><denom>`, e.g. `GasPrice.fromString("0.012utoken")`.
+   *
+   * The denom must match the Cosmos SDK 0.42 pattern (https://github.com/cosmos/cosmos-sdk/blob/v0.42.4/types/coin.go#L599-L601).
+   * See `GasPrice` in @cosmjs/stargate for a more generic matcher.
+   *
+   * Separators are not yet supported.
+   */
+  static fromString(gasPrice) {
+    // Use Decimal.fromUserInput and checkDenom for detailed checks and helpful error messages
+    const matchResult = gasPrice.match(/^([0-9.]+)([a-zA-Z][a-zA-Z0-9/:._-]*)$/)
+    if (!matchResult) {
+      throw new Error("Invalid gas price string")
     }
+    const [_, amount, denom] = matchResult
+    checkDenom(denom)
+    const fractionalDigits = 18
+    const decimalAmount = math_1.Decimal.fromUserInput(amount, fractionalDigits)
+    return new GasPrice(decimalAmount, denom)
+  }
+  /**
+   * Returns a string representation of this gas price, e.g. "0.025uatom".
+   * This can be used as an input to `GasPrice.fromString`.
+   */
+  toString() {
+    return this.amount.toString() + this.denom
+  }
 }
-exports.GasPrice = GasPrice;
+exports.GasPrice = GasPrice
 function calculateFee(gasLimit, gasPrice) {
-    const processedGasPrice = typeof gasPrice === "string" ? GasPrice.fromString(gasPrice) : gasPrice;
-    const { denom, amount: gasPriceAmount } = processedGasPrice;
-    // Note: Amount can exceed the safe integer range (https://github.com/cosmos/cosmjs/issues/1134),
-    // which we handle by converting from Decimal to string without going through number.
-    const amount = gasPriceAmount.multiply(new math_1.Uint53(gasLimit)).ceil().toString();
-    return {
-        amount: (0, proto_signing_1.coins)(amount, denom),
-        gas: gasLimit.toString(),
-    };
+  const processedGasPrice = typeof gasPrice === "string" ? GasPrice.fromString(gasPrice) : gasPrice
+  const { denom, amount: gasPriceAmount } = processedGasPrice
+  // Note: Amount can exceed the safe integer range (https://github.com/cosmos/cosmjs/issues/1134),
+  // which we handle by converting from Decimal to string without going through number.
+  const amount = gasPriceAmount.multiply(new math_1.Uint53(gasLimit)).ceil().toString()
+  return {
+    amount: (0, proto_signing_1.coins)(amount, denom),
+    gas: gasLimit.toString(),
+  }
 }
-exports.calculateFee = calculateFee;
-//# sourceMappingURL=fee.js.map
\ No newline at end of file
+exports.calculateFee = calculateFee
+// # sourceMappingURL=fee.js.map