diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 74f2363..6f11d64 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby_version: [3.4.8, 3.3.10, 3.2.10]
+        ruby_version: [3.4.9, 3.3.10, 3.2.10]
         debian_release: [trixie, bookworm]
     timeout-minutes: 360
     steps: