diff --git a/CHANGELOG.md b/CHANGELOG.md
index b33c64e5..9471b815 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+## `v0.0.56`
+
+### Features
+
+- Added Dymension's GAMM protobufs
+
+### Miscellaneous
+
+- Pinned Cosmos SDK protobuf to `v0.47.9`
+
 ## `v0.0.55`
 
 ### Features
diff --git a/package.json b/package.json
index 1421ee76..613efa83 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cosmes",
-  "version": "0.0.55",
+  "version": "0.0.56",
   "private": false,
   "packageManager": "pnpm@8.3.0",
   "sideEffects": false,
diff --git a/src/client/apis/simulateDymensionSinglePoolSwap.ts b/src/client/apis/simulateDymensionSinglePoolSwap.ts
new file mode 100644
index 00000000..59bdf5fd
--- /dev/null
+++ b/src/client/apis/simulateDymensionSinglePoolSwap.ts
@@ -0,0 +1,36 @@
+import { DymensionGammV1beta1QueryEstimateSwapExactAmountInService as SwapService } from "cosmes/protobufs";
+
+import { RpcClient } from "../clients/RpcClient";
+
+export type SimulateDymensionSinglePoolSwapParams = {
+  poolId: bigint;
+  fromAsset: string;
+  fromAmount: bigint;
+  toAsset: string;
+};
+
+/**
+ * Simulates the amount of `toAsset` assets that would be received by swapping
+ * `fromAmount` amount of `fromAsset` assets via the `poolId` pool.
+ */
+export async function simulateDymensionSinglePoolSwap(
+  endpoint: string,
+  {
+    poolId,
+    fromAsset,
+    fromAmount,
+    toAsset,
+  }: SimulateDymensionSinglePoolSwapParams
+): Promise<bigint> {
+  const { tokenOutAmount } = await RpcClient.query(endpoint, SwapService, {
+    poolId,
+    tokenIn: fromAmount.toString() + fromAsset,
+    routes: [
+      {
+        poolId,
+        tokenOutDenom: toAsset,
+      },
+    ],
+  });
+  return BigInt(tokenOutAmount);
+}
diff --git a/src/client/apis/simulateOsmosisSinglePoolSwap.ts b/src/client/apis/simulateOsmosisSinglePoolSwap.ts
index bca30623..b346d8cd 100644
--- a/src/client/apis/simulateOsmosisSinglePoolSwap.ts
+++ b/src/client/apis/simulateOsmosisSinglePoolSwap.ts
@@ -1,4 +1,4 @@
-import { OsmosisGammV1beta1QueryEstimateSwapExactAmountInService as SwapService } from "cosmes/protobufs";
+import { OsmosisPoolmanagerV1beta1QueryEstimateSwapExactAmountInService as SwapService } from "cosmes/protobufs";
 
 import { RpcClient } from "../clients/RpcClient";
 
@@ -22,19 +22,15 @@ export async function simulateOsmosisSinglePoolSwap(
     toAsset,
   }: SimulateOsmosisSinglePoolSwapParams
 ): Promise<bigint> {
-  const { tokenOutAmount } = await RpcClient.query(
-    endpoint,
-    SwapService, // TODO: migrate to poolmanager once it's ready
-    {
-      poolId,
-      tokenIn: fromAmount.toString() + fromAsset,
-      routes: [
-        {
-          poolId,
-          tokenOutDenom: toAsset,
-        },
-      ],
-    }
-  );
+  const { tokenOutAmount } = await RpcClient.query(endpoint, SwapService, {
+    poolId,
+    tokenIn: fromAmount.toString() + fromAsset,
+    routes: [
+      {
+        poolId,
+        tokenOutDenom: toAsset,
+      },
+    ],
+  });
   return BigInt(tokenOutAmount);
 }
diff --git a/src/client/index.ts b/src/client/index.ts
index 860946b5..c2d3b403 100644
--- a/src/client/index.ts
+++ b/src/client/index.ts
@@ -15,6 +15,10 @@ export {
   simulateAstroportSinglePoolSwap,
   type SimulateAstroportSinglePoolSwapParams,
 } from "./apis/simulateAstroportSinglePoolSwap";
+export {
+  simulateDymensionSinglePoolSwap,
+  type SimulateDymensionSinglePoolSwapParams,
+} from "./apis/simulateDymensionSinglePoolSwap";
 export {
   simulateKujiraSinglePoolSwap,
   type SimulateKujiraSinglePoolSwapParams,