diff --git a/packages/cosmwasm-stargate/src/cosmwasmclient.searchtx.spec.ts b/packages/cosmwasm-stargate/src/cosmwasmclient.searchtx.spec.ts
index f65e2f48..c316ebc3 100644
--- a/packages/cosmwasm-stargate/src/cosmwasmclient.searchtx.spec.ts
+++ b/packages/cosmwasm-stargate/src/cosmwasmclient.searchtx.spec.ts
@@ -79,7 +79,8 @@ async function sendTokens(
     },
   ];
   const gasLimit = 200000;
-  const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], feeAmount, gasLimit);
+  const feePayer = "";
+  const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], feeAmount, gasLimit, feePayer);
 
   const chainId = await client.getChainId();
   const signDoc = makeSignDoc(txBodyBytes, authInfoBytes, chainId, accountNumber);
diff --git a/packages/cosmwasm-stargate/src/cosmwasmclient.spec.ts b/packages/cosmwasm-stargate/src/cosmwasmclient.spec.ts
index 669602dd..d25bffc0 100644
--- a/packages/cosmwasm-stargate/src/cosmwasmclient.spec.ts
+++ b/packages/cosmwasm-stargate/src/cosmwasmclient.spec.ts
@@ -203,7 +203,8 @@ describe("CosmWasmClient", () => {
       };
       const txBodyBytes = registry.encode(txBody);
       const gasLimit = Int53.fromString(fee.gas).toNumber();
-      const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], fee.amount, gasLimit);
+      const feePayer = ""
+      const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], fee.amount, gasLimit, feePayer);
       const signDoc = makeSignDoc(txBodyBytes, authInfoBytes, chainId, accountNumber);
       const { signed, signature } = await wallet.signDirect(alice.address0, signDoc);
       const txRaw = TxRaw.fromPartial({
diff --git a/packages/cosmwasm-stargate/src/signingcosmwasmclient.ts b/packages/cosmwasm-stargate/src/signingcosmwasmclient.ts
index 2065437c..92152524 100644
--- a/packages/cosmwasm-stargate/src/signingcosmwasmclient.ts
+++ b/packages/cosmwasm-stargate/src/signingcosmwasmclient.ts
@@ -582,10 +582,12 @@ export class SigningCosmWasmClient extends CosmWasmClient {
     const signedTxBodyBytes = this.registry.encode(signedTxBody);
     const signedGasLimit = Int53.fromString(signed.fee.gas).toNumber();
     const signedSequence = Int53.fromString(signed.sequence).toNumber();
+    const signedFeePayer = ""
     const signedAuthInfoBytes = makeAuthInfoBytes(
       [{ pubkey, sequence: signedSequence }],
       signed.fee.amount,
       signedGasLimit,
+      signedFeePayer,
       signMode,
     );
     return TxRaw.fromPartial({
@@ -619,7 +621,8 @@ export class SigningCosmWasmClient extends CosmWasmClient {
     };
     const txBodyBytes = this.registry.encode(txBody);
     const gasLimit = Int53.fromString(fee.gas).toNumber();
-    const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], fee.amount, gasLimit);
+    const feePayer = fee.granter == undefined ? "" : fee.granter
+    const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], fee.amount, gasLimit, feePayer);
     const signDoc = makeSignDoc(txBodyBytes, authInfoBytes, chainId, accountNumber);
     const { signature, signed } = await this.signer.signDirect(signerAddress, signDoc);
     return TxRaw.fromPartial({
diff --git a/packages/cosmwasm-stargate/src/testutils.spec.ts b/packages/cosmwasm-stargate/src/testutils.spec.ts
index c4166443..05da4884 100644
--- a/packages/cosmwasm-stargate/src/testutils.spec.ts
+++ b/packages/cosmwasm-stargate/src/testutils.spec.ts
@@ -225,6 +225,7 @@ export class ModifyingDirectSecp256k1HdWallet extends DirectSecp256k1HdWallet {
     }));
     const modifiedFeeAmount = coins(3000, "ucosm");
     const modifiedGasLimit = 333333;
+    const modifiedFeePayer = "";
     const modifiedSignDoc = {
       ...signDoc,
       bodyBytes: Uint8Array.from(TxBody.encode(modifiedTxBody).finish()),
@@ -232,6 +233,7 @@ export class ModifyingDirectSecp256k1HdWallet extends DirectSecp256k1HdWallet {
         signers,
         modifiedFeeAmount,
         modifiedGasLimit,
+        modifiedFeePayer,
         SignMode.SIGN_MODE_DIRECT,
       ),
     };
diff --git a/packages/proto-signing/src/directsecp256k1hdwallet.spec.ts b/packages/proto-signing/src/directsecp256k1hdwallet.spec.ts
index 0b9122f3..0aef01c1 100644
--- a/packages/proto-signing/src/directsecp256k1hdwallet.spec.ts
+++ b/packages/proto-signing/src/directsecp256k1hdwallet.spec.ts
@@ -261,10 +261,11 @@ describe("DirectSecp256k1HdWallet", () => {
       };
       const fee = coins(2000, "ucosm");
       const gasLimit = 200000;
+      const feePayer = ""
       const chainId = "simd-testing";
       const signDoc = makeSignDoc(
         fromHex(bodyBytes),
-        makeAuthInfoBytes([{ pubkey, sequence }], fee, gasLimit),
+        makeAuthInfoBytes([{ pubkey, sequence }], fee, gasLimit, feePayer),
         chainId,
         accountNumber,
       );
diff --git a/packages/proto-signing/src/directsecp256k1wallet.spec.ts b/packages/proto-signing/src/directsecp256k1wallet.spec.ts
index ab42c726..fe388eb5 100644
--- a/packages/proto-signing/src/directsecp256k1wallet.spec.ts
+++ b/packages/proto-signing/src/directsecp256k1wallet.spec.ts
@@ -44,9 +44,10 @@ describe("DirectSecp256k1Wallet", () => {
       const fee = coins(2000, "ucosm");
       const gasLimit = 200000;
       const chainId = "simd-testing";
+      const feePayer = "";
       const signDoc = makeSignDoc(
         fromHex(bodyBytes),
-        makeAuthInfoBytes([{ pubkey, sequence }], fee, gasLimit),
+        makeAuthInfoBytes([{ pubkey, sequence }], fee, gasLimit, feePayer),
         chainId,
         accountNumber,
       );
diff --git a/packages/stargate/src/signingstargateclient.ts b/packages/stargate/src/signingstargateclient.ts
index 9dec3293..4afece8b 100644
--- a/packages/stargate/src/signingstargateclient.ts
+++ b/packages/stargate/src/signingstargateclient.ts
@@ -362,10 +362,12 @@ export class SigningStargateClient extends StargateClient {
     const signedTxBodyBytes = this.registry.encode(signedTxBodyEncodeObject);
     const signedGasLimit = Int53.fromString(signed.fee.gas).toNumber();
     const signedSequence = Int53.fromString(signed.sequence).toNumber();
+    const signedFeePayer = signed.fee.granter == undefined ? "" : signed.fee.granter 
     const signedAuthInfoBytes = makeAuthInfoBytes(
       [{ pubkey, sequence: signedSequence }],
       signed.fee.amount,
       signedGasLimit,
+      signedFeePayer,
       signMode,
     );
     return TxRaw.fromPartial({
@@ -399,7 +401,8 @@ export class SigningStargateClient extends StargateClient {
     };
     const txBodyBytes = this.registry.encode(txBodyEncodeObject);
     const gasLimit = Int53.fromString(fee.gas).toNumber();
-    const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], fee.amount, gasLimit);
+    const feePayer = fee.granter == undefined ? "" : fee.granter
+    const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], fee.amount, gasLimit, feePayer);
     const signDoc = makeSignDoc(txBodyBytes, authInfoBytes, chainId, accountNumber);
     const { signature, signed } = await this.signer.signDirect(signerAddress, signDoc);
     return TxRaw.fromPartial({
diff --git a/packages/stargate/src/stargateclient.searchtx.spec.ts b/packages/stargate/src/stargateclient.searchtx.spec.ts
index 02f0b1b4..465bb5af 100644
--- a/packages/stargate/src/stargateclient.searchtx.spec.ts
+++ b/packages/stargate/src/stargateclient.searchtx.spec.ts
@@ -74,7 +74,8 @@ async function sendTokens(
     },
   ];
   const gasLimit = 200000;
-  const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], feeAmount, gasLimit);
+  const feePayer = "";
+  const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], feeAmount, gasLimit, feePayer);
 
   const chainId = await client.getChainId();
   const signDoc = makeSignDoc(txBodyBytes, authInfoBytes, chainId, accountNumber);
diff --git a/packages/stargate/src/stargateclient.spec.ts b/packages/stargate/src/stargateclient.spec.ts
index 1b937656..3cc62456 100644
--- a/packages/stargate/src/stargateclient.spec.ts
+++ b/packages/stargate/src/stargateclient.spec.ts
@@ -364,7 +364,8 @@ describe("StargateClient", () => {
       const { accountNumber, sequence } = (await client.getSequence(address))!;
       const feeAmount = coins(2000, "ucosm");
       const gasLimit = 200000;
-      const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], feeAmount, gasLimit);
+      const feePayer = "";
+      const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], feeAmount, gasLimit, feePayer);
 
       const chainId = await client.getChainId();
       const signDoc = makeSignDoc(txBodyBytes, authInfoBytes, chainId, accountNumber);
@@ -421,7 +422,8 @@ describe("StargateClient", () => {
       const { accountNumber, sequence } = (await client.getSequence(address))!;
       const feeAmount = coins(2000, "ucosm");
       const gasLimit = 200000;
-      const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], feeAmount, gasLimit, sequence);
+      const feePayer = "";
+      const authInfoBytes = makeAuthInfoBytes([{ pubkey, sequence }], feeAmount, gasLimit, feePayer, sequence);
 
       const chainId = await client.getChainId();
       const signDoc = makeSignDoc(txBodyBytes, authInfoBytes, chainId, accountNumber);
@@ -482,9 +484,10 @@ describe("StargateClient", () => {
       const chainId = await client.getChainId();
       const feeAmount = coins(2000, "ucosm");
       const gasLimit = 200000;
+      const feePayer = "";
 
       const { accountNumber: accountNumber1, sequence: sequence1 } = (await client.getSequence(address))!;
-      const authInfoBytes1 = makeAuthInfoBytes([{ pubkey, sequence: sequence1 }], feeAmount, gasLimit);
+      const authInfoBytes1 = makeAuthInfoBytes([{ pubkey, sequence: sequence1 }], feeAmount, gasLimit, feePayer);
       const signDoc1 = makeSignDoc(txBodyBytes, authInfoBytes1, chainId, accountNumber1);
       const { signature: signature1 } = await wallet.signDirect(address, signDoc1);
       const txRaw1 = TxRaw.fromPartial({
@@ -498,7 +501,7 @@ describe("StargateClient", () => {
       assertIsDeliverTxSuccess(txResult);
 
       const { accountNumber: accountNumber2, sequence: sequence2 } = (await client.getSequence(address))!;
-      const authInfoBytes2 = makeAuthInfoBytes([{ pubkey, sequence: sequence2 }], feeAmount, gasLimit);
+      const authInfoBytes2 = makeAuthInfoBytes([{ pubkey, sequence: sequence2 }], feeAmount, gasLimit, feePayer);
       const signDoc2 = makeSignDoc(txBodyBytes, authInfoBytes2, chainId, accountNumber2);
       const { signature: signature2 } = await wallet.signDirect(address, signDoc2);
       const txRaw2 = TxRaw.fromPartial({
diff --git a/packages/stargate/src/testutils.spec.ts b/packages/stargate/src/testutils.spec.ts
index 47f33fdc..b5ddb640 100644
--- a/packages/stargate/src/testutils.spec.ts
+++ b/packages/stargate/src/testutils.spec.ts
@@ -234,6 +234,7 @@ export class ModifyingDirectSecp256k1HdWallet extends DirectSecp256k1HdWallet {
     }));
     const modifiedFeeAmount = coins(3000, "ucosm");
     const modifiedGasLimit = 333333;
+    const modifiedFeePayer = "";
     const modifiedSignDoc = {
       ...signDoc,
       bodyBytes: Uint8Array.from(TxBody.encode(modifiedTxBody).finish()),
@@ -241,6 +242,7 @@ export class ModifyingDirectSecp256k1HdWallet extends DirectSecp256k1HdWallet {
         signers,
         modifiedFeeAmount,
         modifiedGasLimit,
+        modifiedFeePayer,
         SignMode.SIGN_MODE_DIRECT,
       ),
     };