diff --git a/.github/workflows/spec_guards.yml b/.github/workflows/spec_guards.yml
index 321099f024..76eac95f39 100644
--- a/.github/workflows/spec_guards.yml
+++ b/.github/workflows/spec_guards.yml
@@ -43,6 +43,7 @@ jobs:
           - ruby-3.1
           - ruby-3.2
           - ruby-3.3
+          - ruby-3.4
 
     steps:
       - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0