diff --git a/src/message.ts b/src/message.ts
index f2ed1fa..970b02a 100644
--- a/src/message.ts
+++ b/src/message.ts
@@ -19,16 +19,6 @@ import {
   VoteOptionMap,
 } from '../codegen/cosmos/gov/v1beta1/gov_pb'
 
-import {
-  MsgVote as MsgVoteGroupProto,
-  ExecMap as GroupExecMap,
-} from '../codegen/cosmos/group/v1/tx_pb'
-
-import {
-  VoteOption as VoteOptionGroup,
-  VoteOptionMap as VoteOptionGroupMap,
-} from '../codegen/cosmos/group/v1/types_pb'
-
 import {
   MsgBeginRedelegate as MsgBeginRedelegateProto,
   MsgDelegate as MsgDelegateProto,
@@ -815,60 +805,6 @@ export class MsgDeposit extends MsgDepositProto implements BaseMsg {
   }
 }
 
-export class MsgVoteGroup extends MsgVoteGroupProto implements BaseMsg {
-  constructor(
-    proposalId: number,
-    voter: string,
-    option: VoteOptionGroupMap[keyof VoteOptionGroupMap],
-    metadata: string,
-    exec: GroupExecMap[keyof GroupExecMap],
-  ) {
-    super()
-    this.setProposalId(proposalId)
-    this.setVoter(voter)
-    this.setOption(option)
-    this.setMetadata(metadata)
-    this.setExec(exec)
-  }
-
-  toAny(): Any {
-    this.validate()
-
-    const anyMsg = new Any()
-    const name = 'cosmos.group.v1.MsgVote'
-    anyMsg.pack(this.serializeBinary(), name, '/')
-    return anyMsg
-  }
-
-  toJSON(): object {
-    return {
-      type: 'cosmos-sdk/group/MsgVote',
-      value: {
-        proposal_id: this.getProposalId().toString(),
-        voter: this.getVoter(),
-        option: this.getOption(),
-        metadata: this.getMetadata(),
-        exec: this.getExec(),
-      },
-    }
-  }
-
-  validate() {
-    if (this.getProposalId() <= 0) {
-      throw new NegativeIntegerError('proposalId cannot be less than zero')
-    }
-    if (this.getVoter() === '') {
-      throw new ValueError('Address should not be an empty string')
-    }
-    if (this.getOption() === VoteOptionGroup.VOTE_OPTION_UNSPECIFIED) {
-      throw new ValueError('VoteOption should not be VOTE_OPTION_UNSPECIFIED')
-    }
-    if (this.getMetadata() === '') {
-      throw new ValueError('metadata should not be an empty string')
-    }
-  }
-}
-
 export class MsgVoteSignals extends MsgVoteSignalProto implements BaseMsg {
   constructor(voter: string, signals: Signal[]) {
     super()