diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 617e861..51c7958 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -29,7 +29,7 @@ jobs:
 
     strategy:
       matrix:
-        os-version: [ 'ubuntu-20.04' ]
+        os-version: [ 'ubuntu-24.04' ]
         ruby-version:
           - '2.3'
           - '2.4'