diff --git a/.github/workflows/dotnet.yml b/.github/workflows/dotnet.yml
index 956e694..26bdc5a 100644
--- a/.github/workflows/dotnet.yml
+++ b/.github/workflows/dotnet.yml
@@ -44,7 +44,7 @@ jobs:
     - name: Install Python dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install pytest
+        pip install pytest httpx
     - name: Run Python unit tests
       run: |
         pytest