diff --git a/.github/workflows/cs102.yml b/.github/workflows/cs102.yml
index 4509ac4..2df86e7 100644
--- a/.github/workflows/cs102.yml
+++ b/.github/workflows/cs102.yml
@@ -7,10 +7,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python 3.8.6
+    - name: Set up Python 3.9
       uses: actions/setup-python@v2
       with:
-        python-version: '3.8.6'
+        python-version: '3.9'
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
diff --git a/homework00/hello.py b/homework00/hello.py
index efe8767..5802c29 100644
--- a/homework00/hello.py
+++ b/homework00/hello.py
@@ -1,5 +1,5 @@
 def get_greeting(name: str) -> str:
-    pass
+    return f"Hello, {name}!"
 
 
 if __name__ == "__main__":