diff --git a/pkg/standalone-utils/contracts/BatchRelayerLibrary.sol b/pkg/standalone-utils/contracts/BatchRelayerLibrary.sol
index 22c86b63a1..8a33d0a554 100644
--- a/pkg/standalone-utils/contracts/BatchRelayerLibrary.sol
+++ b/pkg/standalone-utils/contracts/BatchRelayerLibrary.sol
@@ -58,8 +58,9 @@ contract BatchRelayerLibrary is
         IVault vault,
         IERC20 wstETH,
         IBalancerMinter minter,
-        bool isL2Relayer
-    ) BaseRelayerLibrary(vault) LidoWrapping(wstETH) GaugeActions(minter, isL2Relayer) {
+        bool isL2Relayer,
+        string memory version
+    ) BaseRelayerLibrary(vault, version) LidoWrapping(wstETH) GaugeActions(minter, isL2Relayer) {
         // solhint-disable-previous-line no-empty-blocks
     }
 }
diff --git a/pkg/standalone-utils/contracts/relayer/BalancerRelayer.sol b/pkg/standalone-utils/contracts/relayer/BalancerRelayer.sol
index 32b7f81278..8a52852fc2 100644
--- a/pkg/standalone-utils/contracts/relayer/BalancerRelayer.sol
+++ b/pkg/standalone-utils/contracts/relayer/BalancerRelayer.sol
@@ -17,6 +17,7 @@ pragma experimental ABIEncoderV2;
 
 import "@balancer-labs/v2-interfaces/contracts/standalone-utils/IBalancerRelayer.sol";
 
+import "@balancer-labs/v2-solidity-utils/contracts/helpers/Version.sol";
 import "@balancer-labs/v2-solidity-utils/contracts/openzeppelin/ReentrancyGuard.sol";
 import "@balancer-labs/v2-solidity-utils/contracts/openzeppelin/Address.sol";
 
@@ -42,7 +43,7 @@ import "@balancer-labs/v2-solidity-utils/contracts/openzeppelin/Address.sol";
  * Vault will reject calls from outside the context of the entrypoint: e.g., if a user mistakenly called directly
  * into the library contract.
  */
-contract BalancerRelayer is IBalancerRelayer, ReentrancyGuard {
+contract BalancerRelayer is IBalancerRelayer, Version, ReentrancyGuard {
     using Address for address payable;
     using Address for address;
 
@@ -53,7 +54,11 @@ contract BalancerRelayer is IBalancerRelayer, ReentrancyGuard {
      * @dev This contract is not meant to be deployed directly by an EOA, but rather during construction of a contract
      * derived from `BaseRelayerLibrary`, which will provide its own address as the relayer's library.
      */
-    constructor(IVault vault, address libraryAddress) {
+    constructor(
+        IVault vault,
+        address libraryAddress,
+        string memory version
+    ) Version(version) {
         _vault = vault;
         _library = libraryAddress;
     }
diff --git a/pkg/standalone-utils/contracts/relayer/BaseRelayerLibrary.sol b/pkg/standalone-utils/contracts/relayer/BaseRelayerLibrary.sol
index edf87cc1b6..dd1feda3b3 100644
--- a/pkg/standalone-utils/contracts/relayer/BaseRelayerLibrary.sol
+++ b/pkg/standalone-utils/contracts/relayer/BaseRelayerLibrary.sol
@@ -48,9 +48,9 @@ contract BaseRelayerLibrary is IBaseRelayerLibrary {
     IVault private immutable _vault;
     IBalancerRelayer private immutable _entrypoint;
 
-    constructor(IVault vault) IBaseRelayerLibrary(vault.WETH()) {
+    constructor(IVault vault, string memory version) IBaseRelayerLibrary(vault.WETH()) {
         _vault = vault;
-        _entrypoint = new BalancerRelayer(vault, address(this));
+        _entrypoint = new BalancerRelayer(vault, address(this), version);
     }
 
     function getVault() public view override returns (IVault) {
diff --git a/pkg/standalone-utils/contracts/test/MockBaseRelayerLibrary.sol b/pkg/standalone-utils/contracts/test/MockBaseRelayerLibrary.sol
index 5d4db3e209..185b154649 100644
--- a/pkg/standalone-utils/contracts/test/MockBaseRelayerLibrary.sol
+++ b/pkg/standalone-utils/contracts/test/MockBaseRelayerLibrary.sol
@@ -24,7 +24,7 @@ import "../relayer/BaseRelayerLibrary.sol";
 contract MockBaseRelayerLibrary is BaseRelayerLibrary {
     event ChainedReferenceValueRead(uint256 value);
 
-    constructor(IVault vault) BaseRelayerLibrary(vault) {}
+    constructor(IVault vault, string memory version) BaseRelayerLibrary(vault, version) {}
 
     function isChainedReference(uint256 amount) public pure returns (bool) {
         return _isChainedReference(amount);
diff --git a/pkg/standalone-utils/contracts/test/MockBatchRelayerLibrary.sol b/pkg/standalone-utils/contracts/test/MockBatchRelayerLibrary.sol
index 705aad56a1..e5c999f8fa 100644
--- a/pkg/standalone-utils/contracts/test/MockBatchRelayerLibrary.sol
+++ b/pkg/standalone-utils/contracts/test/MockBatchRelayerLibrary.sol
@@ -27,7 +27,7 @@ contract MockBatchRelayerLibrary is BatchRelayerLibrary {
         IERC20 wstETH,
         IBalancerMinter minter,
         bool isL2Relayer
-    ) BatchRelayerLibrary(vault, wstETH, minter, isL2Relayer) {}
+    ) BatchRelayerLibrary(vault, wstETH, minter, isL2Relayer, "") {}
 
     function setChainedReferenceValue(uint256 ref, uint256 value) public {
         _setChainedReferenceValue(ref, value);
diff --git a/pkg/standalone-utils/test/BaseRelayerLibrary.test.ts b/pkg/standalone-utils/test/BaseRelayerLibrary.test.ts
index 048b30d10a..2959455214 100644
--- a/pkg/standalone-utils/test/BaseRelayerLibrary.test.ts
+++ b/pkg/standalone-utils/test/BaseRelayerLibrary.test.ts
@@ -22,6 +22,11 @@ describe('BaseRelayerLibrary', function () {
   let otherRelayer: SignerWithAddress;
 
   let admin: SignerWithAddress, signer: SignerWithAddress;
+  const version = JSON.stringify({
+    name: 'BatchRelayer',
+    version: '1',
+    deployment: 'test-deployment',
+  });
 
   before('get signers', async () => {
     [, admin, signer, otherRelayer] = await ethers.getSigners();
@@ -33,7 +38,7 @@ describe('BaseRelayerLibrary', function () {
     vault = vaultHelper.instance;
 
     // Deploy Relayer
-    relayerLibrary = await deploy('MockBaseRelayerLibrary', { args: [vault.address] });
+    relayerLibrary = await deploy('MockBaseRelayerLibrary', { args: [vault.address, version] });
     relayer = await deployedAt('BalancerRelayer', await relayerLibrary.getEntrypoint());
     token = await deploy('TestWETH'); // Any ERC-20 will do.
   });
@@ -46,6 +51,10 @@ describe('BaseRelayerLibrary', function () {
     it('returns the vault address', async () => {
       expect(await relayer.getVault()).to.equal(vault.address);
     });
+
+    it('returns the relayer version', async () => {
+      expect(await relayer.version()).to.equal(version);
+    });
   });
 
   describe('chained references', () => {
diff --git a/pvt/benchmarks/relayer.ts b/pvt/benchmarks/relayer.ts
index 671076dfdb..6e2501d545 100644
--- a/pvt/benchmarks/relayer.ts
+++ b/pvt/benchmarks/relayer.ts
@@ -14,8 +14,8 @@ const wordBytesSize = 32;
 
 async function main() {
   ({ vault } = await setupEnvironment());
-  relayerLibrary = await deploy('v2-standalone-utils/MockBaseRelayerLibrary', { args: [vault.address] });
-  relayer = await deploy('v2-standalone-utils/BalancerRelayer', { args: [vault.address, relayerLibrary.address] });
+  relayerLibrary = await deploy('v2-standalone-utils/MockBaseRelayerLibrary', { args: [vault.address, ''] });
+  relayer = await deploy('v2-standalone-utils/BalancerRelayer', { args: [vault.address, relayerLibrary.address, ''] });
   let totalGasUsed = bn(0);
 
   console.log('== Measuring multicall gas usage ==\n');