diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c2ef0af86..07bd73793 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,7 +21,7 @@ jobs:
         with:
           node-version: '16'
       - uses: actions/checkout@v1
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         with:
           path: node_modules
           key: ${{ runner.os }}-${{ hashFiles('yarn.lock') }}
@@ -42,7 +42,7 @@ jobs:
         with:
           node-version: '16'
       - uses: actions/checkout@v1
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         with:
           path: node_modules
           key: ${{ runner.os }}-${{ hashFiles('yarn.lock') }}
@@ -57,7 +57,7 @@ jobs:
         with:
           node-version: '16'
       - uses: actions/checkout@v1
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         with:
           path: node_modules
           key: ${{ runner.os }}-${{ hashFiles('yarn.lock') }}
@@ -71,7 +71,7 @@ jobs:
         with:
           node-version: '16'
       - uses: actions/checkout@v1
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         with:
           path: node_modules
           key: ${{ runner.os }}-${{ hashFiles('yarn.lock') }}
@@ -80,7 +80,7 @@ jobs:
       - run: yarn compile
 
       - run: FORCE_COLOR=1 yarn coverage
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v4
         with:
           name: solidity-coverage
           path: |
diff --git a/contracts/core/EntryPoint.sol b/contracts/core/EntryPoint.sol
index 44501524d..4bc9e1db0 100644
--- a/contracts/core/EntryPoint.sol
+++ b/contracts/core/EntryPoint.sol
@@ -43,7 +43,7 @@ contract EntryPoint is IEntryPoint, StakeManager, NonceManager, ReentrancyGuard,
     bytes32 private constant INNER_REVERT_LOW_PREFUND = hex"deadaa51";
 
     uint256 private constant REVERT_REASON_MAX_LEN = 2048;
-    uint256 private constant PENALTY_PERCENT = 10;
+    uint256 private constant PENALTY_PERCENT = 100;
 
     /// @inheritdoc IERC165
     function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
diff --git a/test/entrypoint.test.ts b/test/entrypoint.test.ts
index 4a934c447..9824d8f52 100644
--- a/test/entrypoint.test.ts
+++ b/test/entrypoint.test.ts
@@ -691,7 +691,7 @@ describe('EntryPoint', function () {
 
         // we cannot access internal transaction state, so we have to rely on two separate transactions for estimation
         // assuming 10% penalty is charged
-        const expectedGasPenalty = (veryBigCallGasLimit - callGasLimit.toNumber()) * 0.1
+        const expectedGasPenalty = (veryBigCallGasLimit - callGasLimit.toNumber())
         const actualGasPenalty = gasUsed2 - gasUsed1
 
         console.log(actualGasPenalty / expectedGasPenalty)
diff --git a/test/samples/TokenPaymaster.test.ts b/test/samples/TokenPaymaster.test.ts
index 4210b01cf..fd720b449 100644
--- a/test/samples/TokenPaymaster.test.ts
+++ b/test/samples/TokenPaymaster.test.ts
@@ -250,7 +250,7 @@ describe('TokenPaymaster', function () {
     assert.equal(actualTokenChargeEvents.toString(), actualTokenCharge.toString())
     assert.equal(actualTokenChargeEvents.toString(), expectedTokenCharge.toString())
     assert.equal(actualTokenPriceWithMarkup.toString(), expectedTokenPriceWithMarkup.toString())
-    assert.closeTo(postOpGasCost.div(tx.effectiveGasPrice).toNumber(), 50000, 20000)
+    assert.closeTo(postOpGasCost.div(tx.effectiveGasPrice).toNumber(), 326000, 20000)
     await ethers.provider.send('evm_revert', [snapshot])
   })