diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0ef77990d1..e38886d06f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,12 @@ and this project adheres to
 
 ## [Unreleased]
 
+### Changed
+
+- @cosmjs/stargate: Update validation of GasPrice.fromString to allow using ibc denoms as gas denom ([#1522])
+
+[#1522]: https://github.com/cosmos/cosmjs/pull/1522
+
 ## [0.32.1] - 2023-12-04
 
 ### Fixed
diff --git a/packages/stargate/src/fee.spec.ts b/packages/stargate/src/fee.spec.ts
index 38736f1770..a8ca0fc026 100644
--- a/packages/stargate/src/fee.spec.ts
+++ b/packages/stargate/src/fee.spec.ts
@@ -30,6 +30,10 @@ describe("GasPrice", () => {
         "0.14ucoin2": { amount: "0.14", denom: "ucoin2" },
         // eslint-disable-next-line @typescript-eslint/naming-convention
         "0.14FOOBAR": { amount: "0.14", denom: "FOOBAR" },
+        "0.01ibc/27394FB092D2ECCD56123C74F36E4C1F926001CEADA9CA97EA622B25F41E5EB2": {
+          amount: "0.01",
+          denom: "ibc/27394FB092D2ECCD56123C74F36E4C1F926001CEADA9CA97EA622B25F41E5EB2",
+        },
       };
       for (const [input, expected] of Object.entries(inputs)) {
         const gasPrice = GasPrice.fromString(input);
diff --git a/packages/stargate/src/fee.ts b/packages/stargate/src/fee.ts
index 3f210e9f56..21c3c5c28b 100644
--- a/packages/stargate/src/fee.ts
+++ b/packages/stargate/src/fee.ts
@@ -37,7 +37,7 @@ export class GasPrice {
    */
   public static fromString(gasPrice: string): GasPrice {
     // Use Decimal.fromUserInput and checkDenom for detailed checks and helpful error messages
-    const matchResult = gasPrice.match(/^([0-9.]+)([a-z][a-z0-9]*)$/i);
+    const matchResult = gasPrice.match(/^([0-9.]+)([a-zA-Z][a-zA-Z0-9/:._-]*)$/);
     if (!matchResult) {
       throw new Error("Invalid gas price string");
     }