diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0f50407..13cc59c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ jobs:
 
     strategy:
       matrix:
-        os: [ 'ubuntu-latest', 'windows-latest' ]
+        os: [ 'ubuntu-22.04', 'windows-latest' ]
         python-version: [ '3.7', '3.8', '3.9', '3.10', '3.11', '3.12' ]
         include:
           - python-version: '3.7'