diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index 89b6c9b..889e441 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -2,7 +2,7 @@ name: Ruby
 on: [push]
 jobs:
   build:
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
         ruby_version: [2.5, 2.6]