diff --git a/components/dataViews/TransactionInfo/TxMsgUpdateAdminContractDetails.tsx b/components/dataViews/TransactionInfo/TxMsgUpdateAdminContractDetails.tsx
new file mode 100644
index 0000000..04e9e3f
--- /dev/null
+++ b/components/dataViews/TransactionInfo/TxMsgUpdateAdminContractDetails.tsx
@@ -0,0 +1,59 @@
+import { MsgUpdateAdmin } from "cosmjs-types/cosmwasm/wasm/v1/tx";
+import HashView from "../HashView";
+
+interface TxMsgUpdateAdminDetailsProps {
+  readonly msgValue: MsgUpdateAdmin;
+}
+
+const TxMsgUpdateAdminDetails = ({ msgValue }: TxMsgUpdateAdminDetailsProps) => {
+  return (
+    <>
+      <li>
+        <h3>MsgUpdateAdmin</h3>
+      </li>
+      <li>
+        <label>Contract:</label>
+        <div title={msgValue.contract}>
+          <HashView hash={msgValue.contract} />
+        </div>
+      </li>
+      <li>
+        <label>New admin:</label>
+        <div>{msgValue.newAdmin.toString()}</div>
+      </li>
+      <style jsx>{`
+        li:not(:has(h3)) {
+          background: rgba(255, 255, 255, 0.03);
+          padding: 6px 10px;
+          border-radius: 8px;
+          display: flex;
+          align-items: center;
+        }
+        li + li:nth-child(2) {
+          margin-top: 25px;
+        }
+        li + li {
+          margin-top: 10px;
+        }
+        li div {
+          padding: 3px 6px;
+        }
+        label {
+          font-size: 12px;
+          background: rgba(255, 255, 255, 0.1);
+          padding: 3px 6px;
+          border-radius: 5px;
+          display: block;
+        }
+        .parse-error p {
+          max-width: 550px;
+          color: red;
+          font-size: 16px;
+          line-height: 1.4;
+        }
+      `}</style>
+    </>
+  );
+};
+
+export default TxMsgUpdateAdminDetails;
diff --git a/components/dataViews/TransactionInfo/index.tsx b/components/dataViews/TransactionInfo/index.tsx
index e0a959b..c8f6c42 100644
--- a/components/dataViews/TransactionInfo/index.tsx
+++ b/components/dataViews/TransactionInfo/index.tsx
@@ -16,6 +16,7 @@ import TxMsgSendDetails from "./TxMsgSendDetails";
 import TxMsgSetWithdrawAddressDetails from "./TxMsgSetWithdrawAddressDetails";
 import TxMsgTransferDetails from "./TxMsgTransferDetails";
 import TxMsgUndelegateDetails from "./TxMsgUndelegateDetails";
+import TxMsgUpdateAdminContractDetails from "./TxMsgUpdateAdminContractDetails";
 
 const TxMsgDetails = ({ typeUrl, value: msgValue }: EncodeObject) => {
   switch (typeUrl) {
@@ -43,6 +44,8 @@ const TxMsgDetails = ({ typeUrl, value: msgValue }: EncodeObject) => {
       return <TxMsgInstantiateContract2Details msgValue={msgValue} />;
     case MsgTypeUrls.Migrate:
       return <TxMsgMigrateContractDetails msgValue={msgValue} />;
+    case MsgTypeUrls.UpdateAdmin:
+      return <TxMsgUpdateAdminContractDetails msgValue={msgValue} />;
     default:
       return null;
   }
diff --git a/components/forms/CreateTxForm/MsgForm/MsgUpdateAdminContractForm.tsx b/components/forms/CreateTxForm/MsgForm/MsgUpdateAdminContractForm.tsx
new file mode 100644
index 0000000..3aa6e75
--- /dev/null
+++ b/components/forms/CreateTxForm/MsgForm/MsgUpdateAdminContractForm.tsx
@@ -0,0 +1,128 @@
+import { MsgUpdateAdminEncodeObject } from "@cosmjs/cosmwasm-stargate";
+import { useEffect, useRef, useState } from "react";
+import { MsgGetter } from "..";
+import { useChains } from "../../../../context/ChainsContext";
+import { checkAddress, exampleAddress, trimStringsObj } from "../../../../lib/displayHelpers";
+import { MsgCodecs, MsgTypeUrls } from "../../../../types/txMsg";
+import Input from "../../../inputs/Input";
+import StackableContainer from "../../../layout/StackableContainer";
+
+interface MsgUpdateAdminContractFormProps {
+  readonly fromAddress: string;
+  readonly setMsgGetter: (msgGetter: MsgGetter) => void;
+  readonly deleteMsg: () => void;
+}
+
+const MsgUpdateAdminContractForm = ({
+                                      fromAddress,
+                                      setMsgGetter,
+                                      deleteMsg,
+                                    }: MsgUpdateAdminContractFormProps) => {
+  const { chain } = useChains();
+
+  const [contractAddress, setContractAddress] = useState("");
+  const [newAdmin, setNewAdmin] = useState("");
+
+  const [contractAddressError, setContractAddressError] = useState("");
+  const [codeIdError, setNewAdminError] = useState("");
+
+  const trimmedInputs = trimStringsObj({ contractAddress, newAdmin });
+
+  useEffect(() => {
+    // eslint-disable-next-line no-shadow
+    const { contractAddress, newAdmin } = trimmedInputs;
+
+    const isMsgValid = (): boolean => {
+      setContractAddressError("");
+      setNewAdminError("");
+
+      const addressErrorMsg = checkAddress(contractAddress, chain.addressPrefix);
+      if (addressErrorMsg) {
+        setContractAddressError(`Invalid address for network ${chain.chainId}: ${addressErrorMsg}`);
+        return false;
+      }
+
+      const newAdminErrorMsg = checkAddress(newAdmin, chain.addressPrefix);
+      if (newAdminErrorMsg) {
+        setNewAdminError("New admin should be a valid bech32 address.");
+        return false;
+      }
+
+      return true;
+    };
+
+    const msgValue = MsgCodecs[MsgTypeUrls.UpdateAdmin].fromPartial({
+      sender: fromAddress,
+      contract: contractAddress,
+      newAdmin: newAdmin,
+    });
+
+    const msg: MsgUpdateAdminEncodeObject = { typeUrl: MsgTypeUrls.UpdateAdmin, value: msgValue };
+
+    setMsgGetter({ isMsgValid, msg });
+  }, [chain.addressPrefix, chain.chainId, fromAddress, setMsgGetter, trimmedInputs]);
+
+  return (
+    <StackableContainer lessPadding lessMargin>
+      <button className="remove" onClick={() => deleteMsg()}>
+        ✕
+      </button>
+      <h2>MsgUpdateAdminContract</h2>
+      <div className="form-item">
+        <Input
+          label="Contract Address"
+          name="contract-address"
+          value={contractAddress}
+          onChange={({ target }) => {
+            setContractAddress(target.value);
+            setContractAddressError("");
+          }}
+          error={contractAddressError}
+          placeholder={`E.g. ${exampleAddress(0, chain.addressPrefix)}`}
+        />
+      </div>
+      <div className="form-item">
+        <Input
+          label="New Admin"
+          name="new-admin"
+          value={newAdmin}
+          onChange={({ target }) => {
+            setNewAdmin(target.value);
+            setNewAdminError("");
+          }}
+          error={codeIdError}
+        />
+      </div>
+      <style jsx>{`
+          .form-item {
+              margin-top: 1.5em;
+          }
+
+          .form-item label {
+              font-style: italic;
+              font-size: 12px;
+          }
+
+          .form-select {
+              display: flex;
+              flex-direction: column;
+              gap: 0.8em;
+          }
+
+          button.remove {
+              background: rgba(255, 255, 255, 0.2);
+              width: 30px;
+              height: 30px;
+              border-radius: 50%;
+              border: none;
+              color: white;
+              position: absolute;
+              right: 10px;
+              top: 10px;
+          }
+      `}</style>
+    </StackableContainer>
+  );
+};
+
+export default MsgUpdateAdminContractForm;
diff --git a/components/forms/CreateTxForm/MsgForm/index.tsx b/components/forms/CreateTxForm/MsgForm/index.tsx
index 21f048f..13718b5 100644
--- a/components/forms/CreateTxForm/MsgForm/index.tsx
+++ b/components/forms/CreateTxForm/MsgForm/index.tsx
@@ -12,6 +12,7 @@ import MsgSendForm from "./MsgSendForm";
 import MsgSetWithdrawAddressForm from "./MsgSetWithdrawAddressForm";
 import MsgTransferForm from "./MsgTransferForm";
 import MsgUndelegateForm from "./MsgUndelegateForm";
+import MsgUpdateAdminContractForm from "@/components/forms/CreateTxForm/MsgForm/MsgUpdateAdminContractForm";
 
 interface MsgFormProps {
   readonly msgType: MsgTypeUrl;
@@ -46,6 +47,8 @@ const MsgForm = ({ msgType, senderAddress, ...restProps }: MsgFormProps) => {
       return <MsgInstantiateContract2Form fromAddress={senderAddress} {...restProps} />;
     case MsgTypeUrls.Migrate:
       return <MsgMigrateContractForm fromAddress={senderAddress} {...restProps} />;
+    case MsgTypeUrls.UpdateAdmin:
+      return <MsgUpdateAdminContractForm fromAddress={senderAddress} {...restProps} />;
     default:
       return null;
   }
diff --git a/components/forms/CreateTxForm/index.tsx b/components/forms/CreateTxForm/index.tsx
index f5aca87..c575686 100644
--- a/components/forms/CreateTxForm/index.tsx
+++ b/components/forms/CreateTxForm/index.tsx
@@ -254,6 +254,9 @@ const CreateTxForm = ({ router, senderAddress, accountOnChain }: CreateTxFormPro
             <li>
               <Button label="MigrateContract" onClick={() => addMsgType(MsgTypeUrls.Migrate)} />
             </li>
+            <li>
+              <Button label="UpdateAdminContract" onClick={() => addMsgType(MsgTypeUrls.UpdateAdmin)} />
+            </li>
           </ul>
         </div>
       </div>
diff --git a/lib/txMsgHelpers.ts b/lib/txMsgHelpers.ts
index 5f365b3..e4022e6 100644
--- a/lib/txMsgHelpers.ts
+++ b/lib/txMsgHelpers.ts
@@ -30,6 +30,8 @@ const gasOfMsg = (msgType: MsgTypeUrl): number => {
       return 150_000;
     case MsgTypeUrls.Migrate:
       return 150_000;
+    case MsgTypeUrls.UpdateAdmin:
+      return 150_000;
     default:
       throw new Error("Unknown msg type");
   }
@@ -37,8 +39,7 @@ const gasOfMsg = (msgType: MsgTypeUrl): number => {
 
 export const gasOfTx = (msgTypes: readonly MsgTypeUrl[]): number => {
   const txFlatGas = 100_000;
-  const totalTxGas = msgTypes.reduce((acc, msgType) => acc + gasOfMsg(msgType), txFlatGas);
-  return totalTxGas;
+  return msgTypes.reduce((acc, msgType) => acc + gasOfMsg(msgType), txFlatGas);
 };
 
 export const isKnownMsgTypeUrl = (typeUrl: string): typeUrl is MsgTypeUrl =>
diff --git a/types/txMsg.ts b/types/txMsg.ts
index 6a1ccb2..129d3ab 100644
--- a/types/txMsg.ts
+++ b/types/txMsg.ts
@@ -14,6 +14,7 @@ import {
   MsgInstantiateContract,
   MsgInstantiateContract2,
   MsgMigrateContract,
+  MsgUpdateAdmin
 } from "cosmjs-types/cosmwasm/wasm/v1/tx";
 import { MsgTransfer } from "cosmjs-types/ibc/applications/transfer/v1/tx";
 
@@ -30,6 +31,7 @@ export const MsgTypeUrls = {
   Instantiate: "/cosmwasm.wasm.v1.MsgInstantiateContract",
   Instantiate2: "/cosmwasm.wasm.v1.MsgInstantiateContract2",
   Migrate: "/cosmwasm.wasm.v1.MsgMigrateContract",
+  UpdateAdmin: "/cosmwasm.wasm.v1.MsgUpdateAdmin",
 } as const;
 
 export type MsgTypeUrl = (typeof MsgTypeUrls)[keyof typeof MsgTypeUrls];
@@ -47,4 +49,5 @@ export const MsgCodecs = {
   [MsgTypeUrls.Instantiate]: MsgInstantiateContract,
   [MsgTypeUrls.Instantiate2]: MsgInstantiateContract2,
   [MsgTypeUrls.Migrate]: MsgMigrateContract,
+  [MsgTypeUrls.UpdateAdmin]: MsgUpdateAdmin,
 };