diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index bfab5295..e9530f34 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -26,6 +26,6 @@ jobs:
         run: |
           cd samples/3rdparty/pdfplumber
           python -m venv venv
-          venv/bin/pip install -e ../../..
+          SETUPTOOLS_SCM_PRETEND_VERSION=0.2.5 venv/bin/pip install -e ../../..
           make venv
           make tests