diff --git a/abis/0.8.23/VoteWeighting.json b/abis/0.8.23/VoteWeighting.json
index fe7e085..08ad0f5 100644
--- a/abis/0.8.23/VoteWeighting.json
+++ b/abis/0.8.23/VoteWeighting.json
@@ -315,7 +315,7 @@
       "anonymous": false,
       "inputs": [
         {
-          "indexed": false,
+          "indexed": true,
           "internalType": "bytes32",
           "name": "account",
           "type": "bytes32"
@@ -333,7 +333,20 @@
           "type": "uint256"
         }
       ],
-      "name": "NewNominee",
+      "name": "AddNominee",
+      "type": "event"
+    },
+    {
+      "anonymous": false,
+      "inputs": [
+        {
+          "indexed": true,
+          "internalType": "address",
+          "name": "owner",
+          "type": "address"
+        }
+      ],
+      "name": "OwnerUpdated",
       "type": "event"
     },
     {
@@ -342,7 +355,7 @@
         {
           "indexed": true,
           "internalType": "bytes32",
-          "name": "nominee",
+          "name": "account",
           "type": "bytes32"
         },
         {
@@ -354,17 +367,11 @@
         {
           "indexed": false,
           "internalType": "uint256",
-          "name": "weight",
-          "type": "uint256"
-        },
-        {
-          "indexed": false,
-          "internalType": "uint256",
-          "name": "totalWeight",
+          "name": "newSum",
           "type": "uint256"
         }
       ],
-      "name": "NewNomineeWeight",
+      "name": "RemoveNominee",
       "type": "event"
     },
     {
@@ -486,6 +493,19 @@
       "stateMutability": "nonpayable",
       "type": "function"
     },
+    {
+      "inputs": [
+        {
+          "internalType": "address",
+          "name": "newOwner",
+          "type": "address"
+        }
+      ],
+      "name": "changeOwner",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
     {
       "inputs": [
         {
@@ -860,6 +880,19 @@
       "stateMutability": "nonpayable",
       "type": "function"
     },
+    {
+      "inputs": [],
+      "name": "owner",
+      "outputs": [
+        {
+          "internalType": "address",
+          "name": "",
+          "type": "address"
+        }
+      ],
+      "stateMutability": "view",
+      "type": "function"
+    },
     {
       "inputs": [
         {
@@ -913,6 +946,24 @@
       "stateMutability": "view",
       "type": "function"
     },
+    {
+      "inputs": [
+        {
+          "internalType": "bytes32",
+          "name": "account",
+          "type": "bytes32"
+        },
+        {
+          "internalType": "uint256",
+          "name": "chainId",
+          "type": "uint256"
+        }
+      ],
+      "name": "removeNominee",
+      "outputs": [],
+      "stateMutability": "nonpayable",
+      "type": "function"
+    },
     {
       "inputs": [
         {
@@ -1082,8 +1133,8 @@
       "type": "function"
     }
   ],
-  "bytecode": 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   "linkReferences": {},
   "deployedLinkReferences": {}
 }
diff --git a/contracts/VoteWeighting.sol b/contracts/VoteWeighting.sol
index 853769b..23aad9d 100644
--- a/contracts/VoteWeighting.sol
+++ b/contracts/VoteWeighting.sol
@@ -69,9 +69,10 @@ struct Nominee {
 }
 
 contract VoteWeighting is IErrors {
-    event NewNomineeWeight(bytes32 indexed nominee, uint256 chainId, uint256 weight, uint256 totalWeight);
+    event OwnerUpdated(address indexed owner);
     event VoteForNominee(address indexed user, bytes32 indexed nominee, uint256 chainId, uint256 weight);
-    event NewNominee(bytes32 account, uint256 chainId, uint256 id);
+    event AddNominee(bytes32 indexed account, uint256 chainId, uint256 id);
+    event RemoveNominee(bytes32 indexed account, uint256 chainId, uint256 newSum);
 
     // 7 * 86400 seconds - all future times are rounded by week
     uint256 public constant WEEK = 604_800;
@@ -83,6 +84,8 @@ contract VoteWeighting is IErrors {
     uint256 public constant MAX_EVM_CHAIN_ID = type(uint64).max / 2 - 36;
     // veOLAS contract address
     address public immutable ve;
+    // Contract owner address
+    address public owner;
 
     // Set of Nominee structs
     Nominee[] public setNominees;
@@ -125,6 +128,7 @@ contract VoteWeighting is IErrors {
         }
 
         // Set initial parameters
+        owner = msg.sender;
         ve = _ve;
         timeSum = block.timestamp / WEEK * WEEK;
         setNominees.push(Nominee(bytes32(0), 0));
@@ -170,7 +174,7 @@ contract VoteWeighting is IErrors {
         // Check that the nominee exists
         bytes32 nomineeHash = keccak256(abi.encode(nominee));
         if (mapNomineeIds[nomineeHash] == 0) {
-            revert NomineeDoesNotExist(nominee.account, nominee.chainId);
+            revert NomineeDoesNotExist(account, chainId);
         }
 
         // t is always > 0 as it is set during the addNominee() call
@@ -215,7 +219,7 @@ contract VoteWeighting is IErrors {
         uint256 nextTime = (block.timestamp + WEEK) / WEEK * WEEK;
         timeWeight[nomineeHash] = nextTime;
 
-        emit NewNominee(nominee.account, nominee.chainId, id);
+        emit AddNominee(nominee.account, nominee.chainId, id);
     }
 
     /// @dev Add EVM nominee address along with the chain Id.
@@ -263,6 +267,23 @@ contract VoteWeighting is IErrors {
         _addNominee(nominee);
     }
 
+    /// @dev Changes the owner address.
+    /// @param newOwner Address of a new owner.
+    function changeOwner(address newOwner) external {
+        // Check for the contract ownership
+        if (msg.sender != owner) {
+            revert OwnerOnly(msg.sender, owner);
+        }
+
+        // Check for the zero address
+        if (newOwner == address(0)) {
+            revert ZeroAddress();
+        }
+
+        owner = newOwner;
+        emit OwnerUpdated(newOwner);
+    }
+
     /// @dev Checkpoint to fill data common for all nominees.
     function checkpoint() external {
         _getSum();
@@ -437,6 +458,48 @@ contract VoteWeighting is IErrors {
         return a > b ? a - b : 0;
     }
 
+    /// @dev Removes nominee from the contract and zeros its weight.
+    /// @param account Address of the nominee in bytes32 form.
+    /// @param chainId Chain Id.
+    function removeNominee(bytes32 account, uint256 chainId) external {
+        // Check for the contract ownership
+        if (msg.sender != owner) {
+            revert OwnerOnly(owner, msg.sender);
+        }
+
+        // Get the nominee struct and hash
+        Nominee memory nominee = Nominee(account, chainId);
+        bytes32 nomineeHash = keccak256(abi.encode(nominee));
+
+        // Get the nominee id in the nominee set
+        uint256 id = mapNomineeIds[nomineeHash];
+        if (id == 0) {
+            revert NomineeDoesNotExist(account, chainId);
+        }
+
+        // Remove nominee from the map
+        mapNomineeIds[nomineeHash] = 0;
+        // Shuffle the current last nominee id in the set to be placed to the removed one
+        nominee = setNominees[setNominees.length - 1];
+        nomineeHash = keccak256(abi.encode(nominee));
+        mapNomineeIds[nomineeHash] = id;
+        setNominees[id] = nominee;
+        // Pop the last element from the set
+        setNominees.pop();
+
+        // Set nominee weight to zero
+        uint256 nextTime = (block.timestamp + WEEK) / WEEK * WEEK;
+        pointsWeight[nomineeHash][nextTime].bias = 0;
+        timeWeight[nomineeHash] = nextTime;
+
+        uint256 oldWeight = _getWeight(account, chainId);
+        uint256 oldSum = _getSum();
+        pointsSum[nextTime].bias = oldSum - oldWeight;
+        timeSum = nextTime;
+
+        emit RemoveNominee(account, chainId, newSum);
+    }
+    
     /// @dev Get current nominee weight.
     /// @param account Address of the nominee in bytes32 form.
     /// @param chainId Chain Id.