diff --git a/.github/workflows/baseruby.yml b/.github/workflows/baseruby.yml
index 860d74aa1aac0f..e0ed5f26430355 100644
--- a/.github/workflows/baseruby.yml
+++ b/.github/workflows/baseruby.yml
@@ -56,6 +56,7 @@ jobs:
           - ruby-3.0
           - ruby-3.1
           - ruby-3.2
+          - ruby-3.3
 
     steps:
       - uses: ruby/setup-ruby@036ef458ddccddb148a2b9fb67e95a22fdbf728b # v1.160.0
diff --git a/.github/workflows/spec_guards.yml b/.github/workflows/spec_guards.yml
index c173512f3ff54f..0ca66e1453b4c0 100644
--- a/.github/workflows/spec_guards.yml
+++ b/.github/workflows/spec_guards.yml
@@ -43,6 +43,7 @@ jobs:
           - ruby-3.0
           - ruby-3.1
           - ruby-3.2
+          - ruby-3.3
 
     steps:
       - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1