diff --git a/contracts/PoolSelector.sol b/contracts/PoolSelector.sol
index d2054637..391ec178 100644
--- a/contracts/PoolSelector.sol
+++ b/contracts/PoolSelector.sol
@@ -22,6 +22,9 @@ contract PoolSelector is IPoolSelector, AccessControlUpgradeable {
 
     mapping(uint8 => uint256) public poolWeights;
 
+    bytes32 public constant POOL_WEIGHTS_OPERATOR = keccak256("POOL_WEIGHTS_OPERATOR");
+    error CallerNotPoolWeightsOperator();
+
     /// @custom:oz-upgrades-unsafe-allow constructor
     constructor() {
         _disableInitializers();
@@ -108,12 +111,14 @@ contract PoolSelector is IPoolSelector, AccessControlUpgradeable {
 
     /**
      * @notice update the target weights of existing pools
-     * @dev only `Manager` can call,
+     * @dev only `POOL_WEIGHTS_OPERATOR's` can call,
      * @param _poolTargets new target weights of pools
      * `_poolTargets` array provide pool target in the same order of poolIDs that are stored in poolIdArray of poolUtils
      */
     function updatePoolWeights(uint256[] calldata _poolTargets) external {
-        UtilLib.onlyManagerRole(msg.sender, staderConfig);
+        if(!onlyPoolWeightsOperatorRole(msg.sender)){
+            revert CallerNotPoolWeightsOperator();
+        }
         uint8[] memory poolIdArray = IPoolUtils(staderConfig.getPoolUtils()).getPoolIdArray();
         uint256 poolCount = poolIdArray.length;
         uint256 poolTargetLength = _poolTargets.length;
@@ -145,4 +150,8 @@ contract PoolSelector is IPoolSelector, AccessControlUpgradeable {
         staderConfig = IStaderConfig(_staderConfig);
         emit UpdatedStaderConfig(_staderConfig);
     }
+
+    function onlyPoolWeightsOperatorRole(address account) private view returns (bool) {
+        return hasRole(POOL_WEIGHTS_OPERATOR, account);
+    }
 }
diff --git a/test/foundry_tests/PoolSelector.t.sol b/test/foundry_tests/PoolSelector.t.sol
index baf7ef39..537968b2 100644
--- a/test/foundry_tests/PoolSelector.t.sol
+++ b/test/foundry_tests/PoolSelector.t.sol
@@ -23,6 +23,8 @@ contract PoolSelectorTest is Test {
     PoolSelector poolSelector;
     PoolUtilsMockForDepositFlow poolUtils;
 
+    error CallerNotPoolWeightsOperator();
+
     function setUp() public {
         vm.clearMockedCalls();
         staderAdmin = vm.addr(100);
@@ -55,6 +57,7 @@ contract PoolSelectorTest is Test {
         poolUtils = new PoolUtilsMockForDepositFlow(address(0), address(staderConfig));
 
         vm.startPrank(staderAdmin);
+        poolSelector.grantRole(poolSelector.POOL_WEIGHTS_OPERATOR(), staderManager);
         staderConfig.updatePoolUtils(address(poolUtils));
         staderConfig.updateStakePoolManager(staderStakePoolManager);
         staderConfig.grantRole(staderConfig.MANAGER(), staderManager);
@@ -95,7 +98,7 @@ contract PoolSelectorTest is Test {
         invalidSizePoolWeight[1] = 4000;
         invalidSizePoolWeight[2] = 4000;
 
-        vm.expectRevert(UtilLib.CallerNotManager.selector);
+        vm.expectRevert(CallerNotPoolWeightsOperator.selector);
         poolSelector.updatePoolWeights(poolWeight);
 
         vm.startPrank(staderManager);