diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 6c08eca2..d10cb45a 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -62,9 +62,9 @@ jobs:
         config:
         # [Python version, tox env]
         - ["2.7",   "plone43-py27", "4.3-2.7"]
-        # - ["2.7",   "plone50-py27"]
-        # - ["2.7",   "plone51-py27"]
-        # - ["2.7",   "plone52-py27"]
+        - ["2.7",   "plone50-py27", "5.0-2.7"]
+        - ["2.7",   "plone51-py27", "5.1-2.7"]
+        - ["2.7",   "plone52-py27", "5.2-2.7"]
     runs-on: ubuntu-20.04
     container:
       image: plone/test-with-tox:${{ matrix.config[2] }}