diff --git a/CHANGELOG.md b/CHANGELOG.md
index 67f7aa7cf8..eb189e8729 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -74,6 +74,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (x/foundation) [\#686](https://github.com/line/lbm-sdk/pull/686) remove `Minthreshold` and `MinPercentage` from x/foundation config
 * (x/foundation) [\#693](https://github.com/line/lbm-sdk/pull/693) add pool to the state of x/foundation
 * (x/foundation) [\#698](https://github.com/line/lbm-sdk/pull/698) update x/group relevant logic in x/foundation
+* (x) [\#691](https://github.com/line/lbm-sdk/pull/691) change AccAddressFromBech32 to MustAccAddressFromBech32
 
 ### Bug Fixes
 * (x/wasm) [\#453](https://github.com/line/lbm-sdk/pull/453) modify wasm grpc query api path
diff --git a/x/auth/types/account.go b/x/auth/types/account.go
index 667969f8a0..2a1d86a891 100644
--- a/x/auth/types/account.go
+++ b/x/auth/types/account.go
@@ -57,7 +57,7 @@ func NewBaseAccountWithAddress(addr sdk.AccAddress) *BaseAccount {
 
 // GetAddress - Implements sdk.AccountI.
 func (acc BaseAccount) GetAddress() sdk.AccAddress {
-	addr, _ := sdk.AccAddressFromBech32(acc.Address)
+	addr := sdk.MustAccAddressFromBech32(acc.Address)
 	return addr
 }
 
diff --git a/x/bank/types/balance.go b/x/bank/types/balance.go
index bfcde80529..59e7b9cff6 100644
--- a/x/bank/types/balance.go
+++ b/x/bank/types/balance.go
@@ -63,7 +63,7 @@ func SanitizeGenesisBalances(balances []Balance) []Balance {
 	// 1. Retrieve the address equivalents for each Balance's address.
 	addresses := make([]sdk.AccAddress, len(balances))
 	for i := range balances {
-		addr, _ := sdk.AccAddressFromBech32(balances[i].Address)
+		addr := sdk.MustAccAddressFromBech32(balances[i].Address)
 		addresses[i] = addr
 	}
 
diff --git a/x/bank/types/msgs.go b/x/bank/types/msgs.go
index 4eda612d2e..c6765e37ba 100644
--- a/x/bank/types/msgs.go
+++ b/x/bank/types/msgs.go
@@ -99,7 +99,7 @@ func (msg MsgMultiSend) GetSignBytes() []byte {
 func (msg MsgMultiSend) GetSigners() []sdk.AccAddress {
 	addrs := make([]sdk.AccAddress, len(msg.Inputs))
 	for i, in := range msg.Inputs {
-		addr, _ := sdk.AccAddressFromBech32(in.Address)
+		addr := sdk.MustAccAddressFromBech32(in.Address)
 		addrs[i] = addr
 	}
 
diff --git a/x/foundation/msgs.go b/x/foundation/msgs.go
index 2451aa717f..3c98951547 100644
--- a/x/foundation/msgs.go
+++ b/x/foundation/msgs.go
@@ -25,7 +25,7 @@ func (m MsgFundTreasury) ValidateBasic() error {
 
 // GetSigners implements Msg.
 func (m MsgFundTreasury) GetSigners() []sdk.AccAddress {
-	signer, _ := sdk.AccAddressFromBech32(m.From)
+	signer := sdk.MustAccAddressFromBech32(m.From)
 	return []sdk.AccAddress{signer}
 }
 
@@ -50,7 +50,7 @@ func (m MsgWithdrawFromTreasury) ValidateBasic() error {
 
 // GetSigners implements Msg.
 func (m MsgWithdrawFromTreasury) GetSigners() []sdk.AccAddress {
-	signer, _ := sdk.AccAddressFromBech32(m.Operator)
+	signer := sdk.MustAccAddressFromBech32(m.Operator)
 	return []sdk.AccAddress{signer}
 }
 
@@ -75,7 +75,7 @@ func (m MsgUpdateMembers) ValidateBasic() error {
 
 // GetSigners implements Msg.
 func (m MsgUpdateMembers) GetSigners() []sdk.AccAddress {
-	signer, _ := sdk.AccAddressFromBech32(m.Operator)
+	signer := sdk.MustAccAddressFromBech32(m.Operator)
 	return []sdk.AccAddress{signer}
 }
 
@@ -99,7 +99,7 @@ func (m MsgUpdateDecisionPolicy) ValidateBasic() error {
 
 // GetSigners implements Msg.
 func (m MsgUpdateDecisionPolicy) GetSigners() []sdk.AccAddress {
-	signer, _ := sdk.AccAddressFromBech32(m.Operator)
+	signer := sdk.MustAccAddressFromBech32(m.Operator)
 	return []sdk.AccAddress{signer}
 }
 
@@ -179,7 +179,7 @@ func (m MsgSubmitProposal) UnpackInterfaces(unpacker codectypes.AnyUnpacker) err
 func (m MsgSubmitProposal) GetSigners() []sdk.AccAddress {
 	signers := make([]sdk.AccAddress, len(m.Proposers))
 	for i, p := range m.Proposers {
-		proposer, _ := sdk.AccAddressFromBech32(p)
+		proposer := sdk.MustAccAddressFromBech32(p)
 		signers[i] = proposer
 	}
 	return signers
@@ -202,7 +202,7 @@ func (m MsgWithdrawProposal) ValidateBasic() error {
 
 // GetSigners implements Msg.
 func (m MsgWithdrawProposal) GetSigners() []sdk.AccAddress {
-	signer, _ := sdk.AccAddressFromBech32(m.Address)
+	signer := sdk.MustAccAddressFromBech32(m.Address)
 	return []sdk.AccAddress{signer}
 }
 
@@ -231,7 +231,7 @@ func (m MsgVote) ValidateBasic() error {
 
 // GetSigners implements Msg.
 func (m MsgVote) GetSigners() []sdk.AccAddress {
-	signer, _ := sdk.AccAddressFromBech32(m.Voter)
+	signer := sdk.MustAccAddressFromBech32(m.Voter)
 	return []sdk.AccAddress{signer}
 }
 
@@ -252,7 +252,7 @@ func (m MsgExec) ValidateBasic() error {
 
 // GetSigners implements Msg.
 func (m MsgExec) GetSigners() []sdk.AccAddress {
-	signer, _ := sdk.AccAddressFromBech32(m.Signer)
+	signer := sdk.MustAccAddressFromBech32(m.Signer)
 	return []sdk.AccAddress{signer}
 }
 
@@ -269,7 +269,7 @@ func (m MsgLeaveFoundation) ValidateBasic() error {
 
 // GetSigners implements Msg.
 func (m MsgLeaveFoundation) GetSigners() []sdk.AccAddress {
-	signer, _ := sdk.AccAddressFromBech32(m.Address)
+	signer := sdk.MustAccAddressFromBech32(m.Address)
 	return []sdk.AccAddress{signer}
 }
 
@@ -325,7 +325,7 @@ func (m MsgGrant) UnpackInterfaces(unpacker codectypes.AnyUnpacker) error {
 
 // GetSigners implements Msg.
 func (m MsgGrant) GetSigners() []sdk.AccAddress {
-	signer, _ := sdk.AccAddressFromBech32(m.Operator)
+	signer := sdk.MustAccAddressFromBech32(m.Operator)
 	return []sdk.AccAddress{signer}
 }
 
@@ -350,6 +350,6 @@ func (m MsgRevoke) ValidateBasic() error {
 
 // GetSigners implements Msg.
 func (m MsgRevoke) GetSigners() []sdk.AccAddress {
-	signer, _ := sdk.AccAddressFromBech32(m.Operator)
+	signer := sdk.MustAccAddressFromBech32(m.Operator)
 	return []sdk.AccAddress{signer}
 }
diff --git a/x/wasm/keeper/keeper_test.go b/x/wasm/keeper/keeper_test.go
index b42d35284e..92e1bcc0e1 100644
--- a/x/wasm/keeper/keeper_test.go
+++ b/x/wasm/keeper/keeper_test.go
@@ -512,6 +512,7 @@ func TestInstantiateWithPermissions(t *testing.T) {
 			srcActor:      myAddr,
 		},
 		"onlyAddress with non matching address": {
+			srcActor:      myAddr,
 			srcPermission: types.AccessTypeOnlyAddress.With(otherAddr),
 			expError:      sdkerrors.ErrUnauthorized,
 		},
diff --git a/x/wasm/lbmtypes/tx.go b/x/wasm/lbmtypes/tx.go
index ab3642182f..cb74722472 100644
--- a/x/wasm/lbmtypes/tx.go
+++ b/x/wasm/lbmtypes/tx.go
@@ -54,6 +54,6 @@ func (msg MsgStoreCodeAndInstantiateContract) GetSignBytes() []byte {
 }
 
 func (msg MsgStoreCodeAndInstantiateContract) GetSigners() []sdk.AccAddress {
-	senderAddr, _ := sdk.AccAddressFromBech32(msg.Sender)
+	senderAddr := sdk.MustAccAddressFromBech32(msg.Sender)
 	return []sdk.AccAddress{senderAddr}
 }
diff --git a/x/wasm/lbmtypes/tx_test.go b/x/wasm/lbmtypes/tx_test.go
index 187f89394a..3fd9e18012 100644
--- a/x/wasm/lbmtypes/tx_test.go
+++ b/x/wasm/lbmtypes/tx_test.go
@@ -1,6 +1,8 @@
 package lbmtypes
 
 import (
+	"encoding/hex"
+	"fmt"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -10,6 +12,10 @@ import (
 	wasmTypes "github.com/line/lbm-sdk/x/wasm/types"
 )
 
+func NewMsgStoreCodeAndInstantiateContract(fromAddr sdk.AccAddress) *MsgStoreCodeAndInstantiateContract {
+	return &MsgStoreCodeAndInstantiateContract{Sender: fromAddr.String()}
+}
+
 func TestStoreCodeAndInstantiateContractValidation(t *testing.T) {
 	bad, err := sdk.AccAddressFromHex("012345")
 	require.NoError(t, err)
@@ -122,3 +128,9 @@ func TestStoreCodeAndInstantiateContractValidation(t *testing.T) {
 		})
 	}
 }
+
+func TestNewMsgStoreCodeAndInstantiateContractGetSigners(t *testing.T) {
+	res := NewMsgStoreCodeAndInstantiateContract(sdk.AccAddress([]byte("input111111111111111"))).GetSigners()
+	bytes := sdk.MustAccAddressFromBech32(res[0].String())
+	require.Equal(t, "696e707574313131313131313131313131313131", fmt.Sprintf("%v", hex.EncodeToString(bytes)))
+}