diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index a2832c12..7fd9b6ce 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -39,7 +39,7 @@ jobs:
       - name: Build the documentation.
         run: nox -s docs
   unit:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
         python: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11']