diff --git a/.ruby-version b/.ruby-version
index 47b322c9..4d9d11cf 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.4.1
+3.4.2
diff --git a/Dockerfile b/Dockerfile
index 0f749774..c75a4746 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:3.4.1 AS base
+FROM ruby:3.4.2 AS base
 
 RUN bundle config --global frozen 1 && \
     mkdir -p /vendor/bundle && \