diff --git a/src/core/Msg.ts b/src/core/Msg.ts
index c059ac10..9113c243 100644
--- a/src/core/Msg.ts
+++ b/src/core/Msg.ts
@@ -68,6 +68,7 @@ import {
   MsgUpdateContractAdmin,
   MsgClearContractAdmin,
   WasmMsg,
+  MsgSudoContract,
 } from './wasm/msgs';
 import {
   MsgBurn,
@@ -432,6 +433,11 @@ export namespace Msg {
           data as MsgExecuteContract.Amino,
           isClassic
         );
+      case 'wasm/MsgSudoContract':
+        return MsgSudoContract.fromAmino(
+          data as MsgSudoContract.Amino,
+          isClassic
+        );
       case 'wasm/MsgMigrateContract':
         return MsgMigrateContract.fromAmino(
           data as MsgMigrateContract.Amino,
@@ -609,6 +615,8 @@ export namespace Msg {
       case '/terra.wasm.v1beta1.MsgExecuteContract':
       case '/cosmwasm.wasm.v1.MsgExecuteContract':
         return MsgExecuteContract.fromData(data, isClassic);
+      case '/cosmwasm.wasm.v1.MsgSudoContract':
+        return MsgSudoContract.fromData(data, isClassic);
       case '/terra.wasm.v1beta1.MsgMigrateContract':
       case '/cosmwasm.wasm.v1.MsgMigrateContract':
         return MsgMigrateContract.fromData(data, isClassic);
@@ -815,6 +823,9 @@ export namespace Msg {
       case '/terra.wasm.v1beta1.MsgExecuteContract':
       case '/cosmwasm.wasm.v1.MsgExecuteContract':
         return MsgExecuteContract.unpackAny(proto, isClassic);
+      case '/terra.wasm.v1beta1.MsgSudoContract':
+      case '/cosmwasm.wasm.v1.MsgSudoContract':
+        return MsgSudoContract.unpackAny(proto, isClassic);
       case '/terra.wasm.v1beta1.MsgMigrateContract':
       case '/cosmwasm.wasm.v1beta1.MsgMigrateContract':
         return MsgMigrateContract.unpackAny(proto, isClassic);
diff --git a/src/core/gov/v1/Proposal.ts b/src/core/gov/v1/Proposal.ts
index f371fd06..c973d261 100644
--- a/src/core/gov/v1/Proposal.ts
+++ b/src/core/gov/v1/Proposal.ts
@@ -11,12 +11,8 @@ import {
 } from '../../upgrade/proposals';
 import {
   ClearAdminProposal,
-  ExecuteContractProposal,
-  InstantiateContractProposal,
-  MigrateContractProposal,
   PinCodesProposal,
   StoreCodeProposal,
-  SudoContractProposal,
   UnpinCodesProposal,
   UpdateAdminProposal,
   UpdateInstantiateConfigProposal,
@@ -39,6 +35,12 @@ import {
   MsgDeleteAlliance,
 } from '../../../core/alliance/proposals';
 import { AccAddress } from 'core/bech32';
+import {
+  MsgExecuteContract,
+  MsgInstantiateContract,
+  MsgMigrateContract,
+  MsgSudoContract,
+} from '../../wasm/msgs';
 
 /**
  * Stores information pertaining to a submitted proposal, such as its status and time of
@@ -318,12 +320,12 @@ export namespace Proposal {
     | MsgDeleteAlliance
     | ClientUpdateProposal
     | ClearAdminProposal
-    | ExecuteContractProposal
-    | InstantiateContractProposal
-    | MigrateContractProposal
+    | MsgExecuteContract
+    | MsgInstantiateContract
+    | MsgMigrateContract
     | PinCodesProposal
     | StoreCodeProposal
-    | SudoContractProposal
+    | MsgSudoContract
     | UnpinCodesProposal
     | UpdateAdminProposal
     | UpdateInstantiateConfigProposal;
@@ -343,12 +345,12 @@ export namespace Proposal {
       | MsgDeleteAlliance.Amino
       | ClientUpdateProposal.Amino
       | ClearAdminProposal.Amino
-      | ExecuteContractProposal.Amino
-      | InstantiateContractProposal.Amino
-      | MigrateContractProposal.Amino
+      | MsgExecuteContract.Amino
+      | MsgInstantiateContract.Amino
+      | MsgMigrateContract.Amino
       | PinCodesProposal.Amino
       | StoreCodeProposal.Amino
-      | SudoContractProposal.Amino
+      | MsgSudoContract.Amino
       | UnpinCodesProposal.Amino
       | UpdateAdminProposal.Amino
       | UpdateInstantiateConfigProposal.Amino
@@ -368,12 +370,12 @@ export namespace Proposal {
       | MsgDeleteAlliance.Data
       | ClientUpdateProposal.Data
       | ClearAdminProposal.Data
-      | ExecuteContractProposal.Data
-      | InstantiateContractProposal.Data
-      | MigrateContractProposal.Data
+      | MsgExecuteContract.Data
+      | MsgInstantiateContract.Data
+      | MsgMigrateContract.Data
       | PinCodesProposal.Data
       | StoreCodeProposal.Data
-      | SudoContractProposal.Data
+      | MsgSudoContract.Data
       | UnpinCodesProposal.Data
       | UpdateAdminProposal.Data
       | UpdateInstantiateConfigProposal.Data
@@ -393,12 +395,12 @@ export namespace Proposal {
       | MsgDeleteAlliance.Proto
       | ClientUpdateProposal.Proto
       | ClearAdminProposal.Proto
-      | ExecuteContractProposal.Proto
-      | InstantiateContractProposal.Proto
-      | MigrateContractProposal.Proto
+      | MsgExecuteContract.Proto
+      | MsgInstantiateContract.Proto
+      | MsgMigrateContract.Proto
       | PinCodesProposal.Proto
       | StoreCodeProposal.Proto
-      | SudoContractProposal.Proto
+      | MsgSudoContract.Proto
       | UnpinCodesProposal.Proto
       | UpdateAdminProposal.Proto
       | UpdateInstantiateConfigProposal.Proto
@@ -428,18 +430,18 @@ export namespace Proposal {
           return ClientUpdateProposal.fromAmino(amino, isClassic);
         case 'wasm/ClearAdminProposal':
           return ClearAdminProposal.fromAmino(amino, isClassic);
-        case 'wasm/ExecuteContractProposal':
-          return ExecuteContractProposal.fromAmino(amino, isClassic);
-        case 'wasm/InstantiateContractProposal':
-          return InstantiateContractProposal.fromAmino(amino, isClassic);
-        case 'wasm/MigrateContractProposal':
-          return MigrateContractProposal.fromAmino(amino, isClassic);
+        case 'wasm/MsgExecuteContract':
+          return MsgExecuteContract.fromAmino(amino, isClassic);
+        case 'wasm/MsgInstantiateContract':
+          return MsgInstantiateContract.fromAmino(amino, isClassic);
+        case 'wasm/MsgMigrateContract':
+          return MsgMigrateContract.fromAmino(amino, isClassic);
         case 'wasm/PinCodesProposal':
           return PinCodesProposal.fromAmino(amino, isClassic);
         case 'wasm/StoreCodeProposal':
           return StoreCodeProposal.fromAmino(amino, isClassic);
-        case 'wasm/SudoContractProposal':
-          return SudoContractProposal.fromAmino(amino, isClassic);
+        case 'wasm/MsgSudoContract':
+          return MsgSudoContract.fromAmino(amino, isClassic);
         case 'wasm/UnpinCodesProposal':
           return UnpinCodesProposal.fromAmino(amino, isClassic);
         case 'wasm/UpdateAdminProposal':
@@ -479,18 +481,18 @@ export namespace Proposal {
           return ClientUpdateProposal.fromData(data, isClassic);
         case '/cosmwasm.wasm.v1.ClearAdminProposal':
           return ClearAdminProposal.fromData(data, isClassic);
-        case '/cosmwasm.wasm.v1.ExecuteContractProposal':
-          return ExecuteContractProposal.fromData(data, isClassic);
-        case '/cosmwasm.wasm.v1.InstantiateContractProposal':
-          return InstantiateContractProposal.fromData(data, isClassic);
-        case '/cosmwasm.wasm.v1.MigrateContractProposal':
-          return MigrateContractProposal.fromData(data, isClassic);
+        case '/cosmwasm.wasm.v1.MsgExecuteContract':
+          return MsgExecuteContract.fromData(data, isClassic);
+        case '/cosmwasm.wasm.v1.MsgInstantiateContract':
+          return MsgInstantiateContract.fromData(data, isClassic);
+        case '/cosmwasm.wasm.v1.MsgMigrateContract':
+          return MsgMigrateContract.fromData(data, isClassic);
         case '/cosmwasm.wasm.v1.PinCodesProposal':
           return PinCodesProposal.fromData(data, isClassic);
         case '/cosmwasm.wasm.v1.StoreCodeProposal':
           return StoreCodeProposal.fromData(data, isClassic);
-        case '/cosmwasm.wasm.v1.SudoContractProposal':
-          return SudoContractProposal.fromData(data, isClassic);
+        case '/cosmwasm.wasm.v1.MsgSudoContract':
+          return MsgSudoContract.fromData(data, isClassic);
         case '/cosmwasm.wasm.v1.UnpinCodesProposal':
           return UnpinCodesProposal.fromData(data, isClassic);
         case '/cosmwasm.wasm.v1.UpdateAdminProposal':
@@ -534,18 +536,18 @@ export namespace Proposal {
           return ClientUpdateProposal.unpackAny(anyProto, isClassic);
         case '/cosmwasm.wasm.v1.ClearAdminProposal':
           return ClearAdminProposal.unpackAny(anyProto, isClassic);
-        case '/cosmwasm.wasm.v1.ExecuteContractProposal':
-          return ExecuteContractProposal.unpackAny(anyProto, isClassic);
-        case '/cosmwasm.wasm.v1.InstantiateContractProposal':
-          return InstantiateContractProposal.unpackAny(anyProto, isClassic);
-        case '/cosmwasm.wasm.v1.MigrateContractProposal':
-          return MigrateContractProposal.unpackAny(anyProto, isClassic);
+        case '/cosmwasm.wasm.v1.MsgExecuteContract':
+          return MsgExecuteContract.unpackAny(anyProto, isClassic);
+        case '/cosmwasm.wasm.v1.MsgInstantiateContract':
+          return MsgInstantiateContract.unpackAny(anyProto, isClassic);
+        case '/cosmwasm.wasm.v1.MsgMigrateContract':
+          return MsgMigrateContract.unpackAny(anyProto, isClassic);
         case '/cosmwasm.wasm.v1.PinCodesProposal':
           return PinCodesProposal.unpackAny(anyProto, isClassic);
         case '/cosmwasm.wasm.v1.StoreCodeProposal':
           return StoreCodeProposal.unpackAny(anyProto, isClassic);
-        case '/cosmwasm.wasm.v1.SudoContractProposal':
-          return SudoContractProposal.unpackAny(anyProto, isClassic);
+        case '/cosmwasm.wasm.v1.MsgSudoContract':
+          return MsgSudoContract.unpackAny(anyProto, isClassic);
         case '/cosmwasm.wasm.v1.UnpinCodesProposal':
           return UnpinCodesProposal.unpackAny(anyProto, isClassic);
         case '/cosmwasm.wasm.v1.UpdateAdminProposal':
diff --git a/src/core/wasm/msgs/MsgSudoContract.ts b/src/core/wasm/msgs/MsgSudoContract.ts
new file mode 100644
index 00000000..10abca11
--- /dev/null
+++ b/src/core/wasm/msgs/MsgSudoContract.ts
@@ -0,0 +1,136 @@
+import { JSONSerializable, removeNull } from '../../../util/json';
+import { Any } from '@terra-money/terra.proto/google/protobuf/any';
+import { MsgSudoContract as MsgSudoContract_pb } from '@terra-money/terra.proto/cosmwasm/wasm/v1/tx';
+
+export class MsgSudoContract extends JSONSerializable<
+  MsgSudoContract.Amino,
+  MsgSudoContract.Data,
+  MsgSudoContract.Proto
+> {
+  /**
+   * @param title a short summary
+   * @param description a human readable text
+   * @param contract contract address to be migrated from
+   * @param msg JSON message to configure the migrate state of the contract
+   */
+  constructor(
+    public authority: string,
+    public contract: string,
+    public msg: object
+  ) {
+    super();
+  }
+
+  public static fromAmino(
+    data: MsgSudoContract.Amino,
+    isClassic?: boolean
+  ): MsgSudoContract {
+    if (isClassic) {
+      throw new Error('Not supported for the network');
+    }
+    const {
+      value: { authority, contract, msg },
+    } = data as MsgSudoContract.Amino;
+    return new MsgSudoContract(authority, contract, msg);
+  }
+
+  public toAmino(isClassic?: boolean): MsgSudoContract.Amino {
+    if (isClassic) {
+      throw new Error('Not supported for the network');
+    }
+    const { authority, contract, msg } = this;
+    return {
+      type: 'wasm/MsgSudoContract',
+      value: {
+        authority,
+        contract,
+        msg,
+      },
+    };
+  }
+
+  public static fromProto(
+    proto: MsgSudoContract.Proto,
+    isClassic?: boolean
+  ): MsgSudoContract {
+    if (isClassic) {
+      throw new Error('Not supported for the network');
+    }
+    return new MsgSudoContract(proto.authority, proto.contract, proto.msg);
+  }
+
+  public toProto(isClassic?: boolean): MsgSudoContract.Proto {
+    if (isClassic) {
+      throw new Error('Not supported for the network');
+    }
+    const { authority, contract, msg } = this;
+    return MsgSudoContract_pb.fromPartial({
+      authority,
+      contract,
+      msg: Buffer.from(JSON.stringify(removeNull(msg)), 'utf-8'),
+    });
+  }
+  public packAny(isClassic?: boolean): Any {
+    if (isClassic) {
+      throw new Error('Not supported for the network');
+    }
+    return Any.fromPartial({
+      typeUrl: '/cosmwasm.wasm.v1.MsgSudoContract',
+      value: MsgSudoContract_pb.encode(this.toProto(isClassic)).finish(),
+    });
+  }
+
+  public static unpackAny(msgAny: Any, isClassic?: boolean): MsgSudoContract {
+    if (isClassic) {
+      throw new Error('Not supported for the network');
+    }
+    return MsgSudoContract.fromProto(
+      MsgSudoContract_pb.decode(msgAny.value),
+      isClassic
+    );
+  }
+
+  public static fromData(
+    data: MsgSudoContract.Data,
+    isClassic?: boolean
+  ): MsgSudoContract {
+    if (isClassic) {
+      throw new Error('Not supported for the network');
+    }
+    const { authority, contract, msg } = data as MsgSudoContract.Data;
+    return new MsgSudoContract(authority, contract, msg);
+  }
+
+  public toData(isClassic?: boolean): MsgSudoContract.Data {
+    if (isClassic) {
+      throw new Error('Not supported for the network');
+    }
+    const { authority, contract, msg } = this;
+    return {
+      '@type': '/cosmwasm.wasm.v1.MsgSudoContract',
+      authority,
+      contract,
+      msg,
+    };
+  }
+}
+
+export namespace MsgSudoContract {
+  export interface Amino {
+    type: 'wasm/MsgSudoContract';
+    value: {
+      authority: string;
+      contract: string;
+      msg: any;
+    };
+  }
+
+  export interface Data {
+    '@type': '/cosmwasm.wasm.v1.MsgSudoContract';
+    authority: string;
+    contract: string;
+    msg: any;
+  }
+
+  export type Proto = MsgSudoContract_pb;
+}
diff --git a/src/core/wasm/msgs/index.ts b/src/core/wasm/msgs/index.ts
index ff0bb33b..28986da9 100644
--- a/src/core/wasm/msgs/index.ts
+++ b/src/core/wasm/msgs/index.ts
@@ -5,7 +5,9 @@ import { MsgExecuteContract } from './MsgExecuteContract';
 import { MsgMigrateContract } from './MsgMigrateContract';
 import { MsgUpdateContractAdmin } from './MsgUpdateContractAdmin';
 import { MsgClearContractAdmin } from './MsgClearContractAdmin';
+import { MsgSudoContract } from './MsgSudoContract';
 
+export * from './MsgSudoContract';
 export * from './MsgStoreCode';
 export * from './MsgMigrateCode';
 export * from './MsgInstantiateContract';
@@ -19,6 +21,7 @@ export type WasmMsg =
   | MsgMigrateCode
   | MsgInstantiateContract
   | MsgExecuteContract
+  | MsgSudoContract
   | MsgMigrateContract
   | MsgUpdateContractAdmin
   | MsgClearContractAdmin;
@@ -29,6 +32,7 @@ export namespace WasmMsg {
     | MsgMigrateCode.Amino
     | MsgInstantiateContract.Amino
     | MsgExecuteContract.Amino
+    | MsgSudoContract.Amino
     | MsgMigrateContract.Amino
     | MsgUpdateContractAdmin.Amino
     | MsgClearContractAdmin.Amino;
@@ -37,6 +41,7 @@ export namespace WasmMsg {
     | MsgMigrateCode.Data
     | MsgInstantiateContract.Data
     | MsgExecuteContract.Data
+    | MsgSudoContract.Data
     | MsgMigrateContract.Data
     | MsgUpdateContractAdmin.Data
     | MsgClearContractAdmin.Data;
@@ -45,6 +50,7 @@ export namespace WasmMsg {
     | MsgMigrateCode.Proto
     | MsgInstantiateContract.Proto
     | MsgExecuteContract.Proto
+    | MsgSudoContract.Proto
     | MsgMigrateContract.Proto
     | MsgUpdateContractAdmin.Proto
     | MsgClearContractAdmin.Proto;