diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a8d44d0..de73c90 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -14,6 +14,7 @@ jobs:
           - '3.0'
           - '3.1'
           - '3.2'
+          - '3.3'
         gemfile:
           - gemfiles/rails_6.1.gemfile
           - gemfiles/rails_7.0.gemfile