diff --git a/packages/protocol/contracts/bridge/QuotaManager.sol b/packages/protocol/contracts/bridge/QuotaManager.sol
index 2b8a4e5e8a0..b5bf55ecfd8 100644
--- a/packages/protocol/contracts/bridge/QuotaManager.sol
+++ b/packages/protocol/contracts/bridge/QuotaManager.sol
@@ -24,6 +24,7 @@ contract QuotaManager is EssentialContract, IQuotaManager {
     uint256[48] private __gap;
 
     event QuotaUpdated(address indexed token, uint256 oldQuota, uint256 newQuota);
+    event QuotaPeriodUpdated(uint256 quotaPeriod);
 
     error QM_INVALID_PARAM();
     error QM_OUT_OF_QUOTA();
@@ -40,21 +41,20 @@ contract QuotaManager is EssentialContract, IQuotaManager {
         external
         initializer
     {
-        if (_quotaPeriod == 0) revert QM_INVALID_PARAM();
-
         __Essential_init(_owner, _addressManager);
-        quotaPeriod = _quotaPeriod;
+        _setQuotaPeriod(_quotaPeriod);
     }
 
     /// @notice Updates the daily quota for a given address.
     /// @param _token The token address with Ether represented by address(0).
     /// @param _quota The new quota for the defined period.
     function updateQuota(address _token, uint104 _quota) external onlyOwner whenNotPaused {
-        uint104 currQuota = tokenQuota[_token].quota;
-        if (_quota == currQuota) revert QM_INVALID_PARAM();
+        emit QuotaUpdated(_token, tokenQuota[_token].quota, _quota);
+        tokenQuota[_token] = Quota(0, _quota, _quota);
+    }
 
-        emit QuotaUpdated(_token, currQuota, _quota);
-        tokenQuota[_token].quota = _quota;
+    function setQuotaPeriod(uint24 _quotaPeriod) external onlyOwner whenNotPaused {
+        _setQuotaPeriod(_quotaPeriod);
     }
 
     /// @inheritdoc IQuotaManager
@@ -89,4 +89,10 @@ contract QuotaManager is EssentialContract, IQuotaManager {
         uint256 issuance = q.quota * (block.timestamp + _leap - q.updatedAt) / quotaPeriod;
         return (issuance + q.available).min(q.quota);
     }
+
+    function _setQuotaPeriod(uint24 _quotaPeriod) private {
+        if (_quotaPeriod == 0) revert QM_INVALID_PARAM();
+        quotaPeriod = _quotaPeriod;
+        emit QuotaPeriodUpdated(_quotaPeriod);
+    }
 }
diff --git a/packages/protocol/deployments/mainnet-contract-logs-L1.md b/packages/protocol/deployments/mainnet-contract-logs-L1.md
index 7a0df43158f..85a73d5b792 100644
--- a/packages/protocol/deployments/mainnet-contract-logs-L1.md
+++ b/packages/protocol/deployments/mainnet-contract-logs-L1.md
@@ -91,6 +91,18 @@
 - logs:
   - deployed on May 13, 2024 at commit `b90b932`
   - admin.taiko.eth accepted the ownership @tx`0x2d6ce1781137899f65c1810e42f556c27caa4e9bd13077ba5bc7a9a0975eefcb`
+- todo:
+
+  - upgrade the contract
+  - set quota_period to 86400 and:
+
+    ```
+     ETH  0x0000000000000000000000000000000000000000 1000000000000000000000
+     WETH  0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2 1000000000000000000000
+     TAIKO 0x10dea67478c5F8C5E2D90e5E9B26dBe60c54d800 2000000000000000000000000
+     USDT  0xdAC17F958D2ee523a2206206994597C13D831ec7 4000000000000
+     USDC  0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 4000000000000
+    ```
 
 #### erc20_vault
 
diff --git a/packages/protocol/test/bridge/QuotaManager.t.sol b/packages/protocol/test/bridge/QuotaManager.t.sol
index be308c6e09b..367c1063835 100644
--- a/packages/protocol/test/bridge/QuotaManager.t.sol
+++ b/packages/protocol/test/bridge/QuotaManager.t.sol
@@ -71,4 +71,22 @@ contract QuotaManagerTest is TaikoTest {
         qm.consumeQuota(token, 6 ether);
         assertEq(qm.availableQuota(token, 0), type(uint256).max);
     }
+
+    function test_calc_quota() public {
+        uint24 quotaPeriod = 24 hours;
+        uint104 value = 4_000_000; // USD
+        uint104 priceETH = 4000; // USD
+        uint104 priceTKO = 2; // USD
+
+        console2.log("quota period:", quotaPeriod);
+        console2.log("quota value: ", value);
+        console2.log("Ether amount ", value / priceETH);
+        console2.log("ETH ", address(0), value * 1 ether / priceETH);
+        console2.log(
+            "WETH ", 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2, value * 1 ether / priceETH
+        );
+        console2.log("TAIKO", 0x10dea67478c5F8C5E2D90e5E9B26dBe60c54d800, value * 1e18 / priceTKO);
+        console2.log("USDT ", 0xdAC17F958D2ee523a2206206994597C13D831ec7, value * 1e6);
+        console2.log("USDC ", 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48, value * 1e6);
+    }
 }