diff --git a/.github/workflows/check_diffs.yml b/.github/workflows/check_diffs.yml
index 4a0b67bdc2f..0c08553afbc 100644
--- a/.github/workflows/check_diffs.yml
+++ b/.github/workflows/check_diffs.yml
@@ -136,6 +136,7 @@ jobs:
         shell: bash
         run: |
           echo "Running extended tests, installing dependencies with uv..."
+          uv venv
           uv sync --group test
           uv pip install -r extended_testing_deps.txt