diff --git a/.gitea/workflows/on_pull_request.yaml b/.gitea/workflows/on_pull_request.yaml
index fe6f6c0c..f53420e2 100644
--- a/.gitea/workflows/on_pull_request.yaml
+++ b/.gitea/workflows/on_pull_request.yaml
@@ -21,6 +21,8 @@ jobs:
           #     from the requirements.txt file(s) in the repository; it's faster
           #     not to have GHA download an (at the time of writing) 4 GB cache
           #     of PyTorch and other dependencies.
+      - name: create venv
+        run: python -m venv venv && source venv/bin/activate
       - name: Install Ruff
         run: pip install ruff==0.1.6
       - name: Run Ruff
diff --git a/.gitea/workflows/run_tests.yaml b/.gitea/workflows/run_tests.yaml
index af631b23..a2bbfbac 100644
--- a/.gitea/workflows/run_tests.yaml
+++ b/.gitea/workflows/run_tests.yaml
@@ -25,6 +25,8 @@ jobs:
           cache-dependency-path: |
             **/requirements*txt
             launch.py
+      - name: create venv
+        run: python -m venv venv && source venv/bin/activate
       - name: Cache models
         id: cache-models
         uses: actions/cache@v3