diff --git a/packages/core/src/utils/fees.ts b/packages/core/src/utils/fees.ts
index 53c5639b..ccbe6b02 100644
--- a/packages/core/src/utils/fees.ts
+++ b/packages/core/src/utils/fees.ts
@@ -1,6 +1,6 @@
 import type { EncodeObject } from '@cosmjs/proto-signing';
-import { calculateFee, GasPrice } from '@cosmjs/stargate';
 import { assertIsDefined } from './asserts';
+import type { GasPrice } from '@cosmjs/stargate';
 import type { SigningSimulatorClient } from '../types';
 import type { Chain } from '@nabla-studio/chain-registry';
 
@@ -11,7 +11,8 @@ import type { Chain } from '@nabla-studio/chain-registry';
  * @param feeDenom ex. uosmo
  * @returns
  */
-export const getGasPrice = (chain: Chain, feeDenom?: string) => {
+export const getGasPrice = async (chain: Chain, feeDenom?: string) => {
+  const GasPrice = (await import('@cosmjs/stargate')).GasPrice;
   let gasPrice: GasPrice | undefined = undefined;
 
   if (chain.fees && chain.fees.fee_tokens.length > 0) {
@@ -31,7 +32,7 @@ export const getGasPrice = (chain: Chain, feeDenom?: string) => {
     if (averageGasPrice && denom && !denom.startsWith('ibc/')) {
       gasPrice = GasPrice.fromString(`${averageGasPrice}${denom}`);
     } else {
-      gasPrice = GasPrice.fromString(`1${denom}`);
+      GasPrice.fromString(`1${denom}`);
     }
   }
 
@@ -53,5 +54,7 @@ export const estimateFee = async (
 
   const gasEstimation = await client.simulate(sender, messages, memo);
 
+  const calculateFee = (await import('@cosmjs/stargate')).calculateFee;
+
   return calculateFee(Math.round(gasEstimation * multiplier), gasPrice);
 };
diff --git a/packages/store/src/cosmjs/sign.ts b/packages/store/src/cosmjs/sign.ts
index b16fd600..64a85b2d 100644
--- a/packages/store/src/cosmjs/sign.ts
+++ b/packages/store/src/cosmjs/sign.ts
@@ -7,15 +7,8 @@ import {
   getEndpoint,
   getGasPrice,
 } from '@quirks/core';
-import {
-  SigningStargateClient,
-  SigningStargateClientOptions,
-  StargateClient,
-} from '@cosmjs/stargate';
-import {
-  SigningCosmWasmClient,
-  SigningCosmWasmClientOptions,
-} from '@cosmjs/cosmwasm-stargate';
+import type { SigningStargateClientOptions } from '@cosmjs/stargate';
+import type { SigningCosmWasmClientOptions } from '@cosmjs/cosmwasm-stargate';
 import { TxRaw } from 'cosmjs-types/cosmos/tx/v1beta1/tx';
 
 /**
@@ -84,6 +77,8 @@ export const broadcast = async (
     clientOptions = stargate(chain);
   }
 
+  const StargateClient = (await import('@cosmjs/stargate')).StargateClient;
+
   const client = await StargateClient.connect(
     endpoint.rpc.address,
     clientOptions,
@@ -120,6 +115,8 @@ export const broadcastSync = async (chainName: string, txRaw: TxRaw) => {
     clientOptions = stargate(chain);
   }
 
+  const StargateClient = (await import('@cosmjs/stargate')).StargateClient;
+
   const client = await StargateClient.connect(
     endpoint.rpc.address,
     clientOptions,
@@ -168,6 +165,9 @@ export const sign = async (
     clientOptions = signingStargate(chain);
   }
 
+  const SigningStargateClient = (await import('@cosmjs/stargate'))
+    .SigningStargateClient;
+
   const client = await SigningStargateClient.connectWithSigner(
     endpoint.rpc.address,
     offlineSigner,
@@ -177,7 +177,7 @@ export const sign = async (
   if (fee === 'auto') {
     const gasPrice = clientOptions?.gasPrice
       ? clientOptions.gasPrice
-      : getGasPrice(chain);
+      : await getGasPrice(chain);
 
     fee = await estimateFee(client, sender, messages, gasPrice, memo);
   }
@@ -225,6 +225,9 @@ export const signCW = async (
     clientOptions = signingCosmwasm(chain);
   }
 
+  const SigningCosmWasmClient = (await import('@cosmjs/cosmwasm-stargate'))
+    .SigningCosmWasmClient;
+
   const client = await SigningCosmWasmClient.connectWithSigner(
     endpoint.rpc.address,
     offlineSigner,
@@ -234,7 +237,7 @@ export const signCW = async (
   if (fee === 'auto') {
     const gasPrice = clientOptions?.gasPrice
       ? clientOptions.gasPrice
-      : getGasPrice(chain);
+      : await getGasPrice(chain);
 
     fee = await estimateFee(client, sender, messages, gasPrice, memo);
   }