diff --git a/.tool-versions b/.tool-versions
index 2d4c36fb..9fb32433 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
-ruby 3.3.6
+ruby 3.4.1
 nodejs 22.12.0
 yarn 1.22.19
diff --git a/docker-compose.yml b/docker-compose.yml
index 905f93a3..5cc65d06 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -4,7 +4,7 @@ volumes:
   scim_stub_db:
 services:
   dummy-web:
-    image: ruby:3.3.6
+    image: ruby:3.4.1
     platform: linux/x86_64
     working_dir: /app/audiences/spec/dummy
     environment: