diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 6cdb3199..154c0485 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -16,10 +16,14 @@ jobs:
         uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: 16
+          node-version: 18
       - name: setup zkevm-rom
         run: |
-          npm i
+          npm install -g npm
+          node -v
+          npm cache clean --force
+          rm -rf node_modules && package-lock.json
+          npm i --legacy-peers
           npm run build
           npm run test:build:gasLimit:v1
           npm run test:build:gasLimit:v2
@@ -35,6 +39,6 @@ jobs:
           npm run test:gen
       - name: Run tests
         run: |
-          export NUM_CPUS=31
+          export NUM_CPUS=4
           npm run test:start
           sh tools/checker.sh
diff --git a/README.md b/README.md
index ea69e27f..607bcbee 100644
--- a/README.md
+++ b/README.md
@@ -21,3 +21,4 @@ Example:
 npm run build -- -i ${path} -o ${path} -s ${steps}
 ```
 
+as
\ No newline at end of file