diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 9018076..242625d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -32,7 +32,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ["ubuntu-latest"]
+        os: ["ubuntu-22.04"]
         python-version: [
           '3.7', '3.13',
           'pypy-3.9', 'pypy-3.10',