diff --git a/.circleci/config.yml b/.circleci/config.yml
index 3100dd1..e776731 100755
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -34,7 +34,7 @@ commands:
 jobs:
   build_3_x:
     docker:
-      - image: ruby:3.2.2
+      - image: ruby:3.3.5
     working_directory: ~/repo
     steps:
       - build
diff --git a/.ruby-version b/.ruby-version
index 818bd47..9c25013 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.0.6
+3.3.6