diff --git a/.github/workflows/test-ruby.yml b/.github/workflows/test-ruby.yml
index 5280f2cb77..e07a0b605e 100644
--- a/.github/workflows/test-ruby.yml
+++ b/.github/workflows/test-ruby.yml
@@ -120,6 +120,7 @@ jobs:
         ruby-version:
           - '3.1'
           - '.ruby-version'
+          - '3.3'
         ci_job:
           - 1
           - 2
@@ -198,6 +199,7 @@ jobs:
         ruby-version:
           - '3.1'
           - '.ruby-version'
+          - '3.3'
 
     steps:
       - uses: actions/checkout@v4
@@ -310,6 +312,7 @@ jobs:
         ruby-version:
           - '3.1'
           - '.ruby-version'
+          - '3.3'
 
     steps:
       - uses: actions/checkout@v4