diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 8c98c58..af79e22 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -86,9 +86,10 @@ jobs:
           python -m venv test_env
           source test_env/bin/activate
           
-          # Install the package from TestPyPI with regular PyPI as fallback for dependencies
-          pip install --no-cache-dir --index-url https://test.pypi.org/simple/ \
-                      --extra-index-url https://pypi.org/simple/ \
+          # Install the package from TestPyPI with regular PyPI as PRIMARY for dependencies
+          # This ensures dependencies like fastapi come from real PyPI, not broken TestPyPI versions
+          pip install --index-url https://pypi.org/simple/ \
+                      --extra-index-url https://test.pypi.org/simple/ \
                       gradient-adk==$VERSION
           
           # Verify the installed version
@@ -118,4 +119,4 @@ jobs:
         uses: actions/upload-artifact@v4
         with:
           name: python-package-distributions
-          path: dist/
+          path: dist/
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