add

.github/workflows/ci.yml

@@ -18,6 +18,11 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
+      - name: Set up Python
+        uses: actions/setup-python@v3
+        with:
+          python-version: "3.9"
+
       - name: Install Docker Compose via Package Manager
         run: |
           sudo apt-get update
@@ -49,8 +54,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip uninstall web3
-          pip install git+https://github.com/ethereum/web3.py.git
+          pip install web3==5.31.3
         shell: bash
 
       - name: deploy erc20 USDC