diff --git a/.github/workflows/test-translations.yml b/.github/workflows/test-translations.yml
index 537a8df72..4c96f47da 100644
--- a/.github/workflows/test-translations.yml
+++ b/.github/workflows/test-translations.yml
@@ -82,6 +82,6 @@ jobs:
 
     - name: Lint translation file
       if: always()
-      run: sphinx-lint locales/${LANGUAGE}/LC_MESSAGES/messages.po
+      run: nox -s sphinx_lint -- locales/${{ matrix.language }}/LC_MESSAGES/messages.po
       env:
         LANGUAGE: ${{ matrix.language }}
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 1f67bad8e..96745a717 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -29,6 +29,7 @@ jobs:
         noxenv:
         - build
         - linkcheck
+        - sphinx_lint
 
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
diff --git a/noxfile.py b/noxfile.py
index 484a8d39a..4df82153d 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -105,3 +105,14 @@ def checkqa(session):
         "--all-files",
         "--show-diff-on-failure",
     )
+
+
+@nox.session()
+def sphinx_lint(session):
+    """
+    Check for reST format issues in source rst files,
+    accepting another path as positional argument.
+    """
+    session.install("sphinx-lint==1.0.0")
+    target = session.posargs or ["source"]
+    session.run("sphinx-lint", *target)