diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0028c0b..e2b3176 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        ruby_version: [3.4.10, 3.3.12]
+        ruby_version: [4.0.7, 3.4.11, 3.3.12]
         debian_release: [trixie, bookworm]
     timeout-minutes: 360
     steps: