diff --git a/.github/actions/setup-runner/action.yml b/.github/actions/setup-runner/action.yml
index 9be7be591..65fc656df 100644
--- a/.github/actions/setup-runner/action.yml
+++ b/.github/actions/setup-runner/action.yml
@@ -37,12 +37,17 @@ runs:
           echo "Exported UV environment variables for current and subsequent steps"
         fi
 
-        echo "Clearing Python bytecode cache and lock file to ensure fresh install"
+        echo "Clearing Python bytecode cache and uv cache to ensure fresh install"
         find . -type d -name "__pycache__" -exec rm -rf {} + 2>/dev/null || true
         find . -name "*.pyc" -delete 2>/dev/null || true
-        rm -f uv.lock
 
-        echo "Syncing dependencies (will regenerate lock file)"
+        # Clear uv's cache directory to force rebuilding wheels from source
+        if [ -n "$UV_CACHE_DIR" ] && [ -d "$UV_CACHE_DIR" ]; then
+          echo "Clearing UV cache at $UV_CACHE_DIR"
+          rm -rf "$UV_CACHE_DIR"/*
+        fi
+
+        echo "Syncing dependencies with uv"
         uv sync --all-groups
 
         echo "Force reinstalling llama-stack from source to ensure latest changes"