diff --git a/Dockerfile b/Dockerfile
index ce490d4..63b5e4e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:4.0.2-slim
+FROM ruby:4.0.3-slim
 
 ENV DEBIAN_FRONTEND=noninteractive \
     LANG=en_US.UTF-8 \