diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e7da970..bf505d2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,7 +21,7 @@ jobs:
           persist-credentials: false
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@14594264cd68ce8a2345dd349bc3d138a4ef85c8 # v1.327.0
+        uses: ruby/setup-ruby@26e5b7d197ebf60545ee9667bcbace0be11ccaec # v1.334.0
         with:
           ruby-version: .ruby-version
           bundler-cache: true
@@ -40,7 +40,7 @@ jobs:
           persist-credentials: false
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@14594264cd68ce8a2345dd349bc3d138a4ef85c8 # v1.327.0
+        uses: ruby/setup-ruby@26e5b7d197ebf60545ee9667bcbace0be11ccaec # v1.334.0
         with:
           ruby-version: .ruby-version
           bundler-cache: true
@@ -63,7 +63,7 @@ jobs:
           persist-credentials: false
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@a0102e0972be65f351c307e2d64b9314a57c8073 # v1.324.0
+        uses: ruby/setup-ruby@26e5b7d197ebf60545ee9667bcbace0be11ccaec # v1.334.0
         with:
           ruby-version: .ruby-version
           bundler-cache: true
@@ -110,7 +110,7 @@ jobs:
           persist-credentials: false
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@14594264cd68ce8a2345dd349bc3d138a4ef85c8 # v1.327.0
+        uses: ruby/setup-ruby@26e5b7d197ebf60545ee9667bcbace0be11ccaec # v1.334.0
         env:
           REDIS_URL: redis://localhost:6379/0
         with:
@@ -143,7 +143,7 @@ jobs:
           persist-credentials: false
 
       - name: Set up Ruby
-        uses: ruby/setup-ruby@14594264cd68ce8a2345dd349bc3d138a4ef85c8 # v1.327.0
+        uses: ruby/setup-ruby@26e5b7d197ebf60545ee9667bcbace0be11ccaec # v1.334.0
         env:
           REDIS_URL: redis://localhost:6379/0
         with:
diff --git a/.ruby-version b/.ruby-version
index 43beb40..7919852 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-4.0.7
+4.0.9
diff --git a/Dockerfile b/Dockerfile
index 195fd22..57eef20 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 # syntax = docker/dockerfile:1
 
 # Make sure it matches the Ruby version in .ruby-version and Gemfile
-ARG RUBY_VERSION=4.0.7
+ARG RUBY_VERSION=4.0.9
 FROM docker.io/library/ruby:$RUBY_VERSION-slim AS base
 
 # Rails app lives here
diff --git a/Dockerfile-export b/Dockerfile-export
index c1a87a0..528b24c 100644
--- a/Dockerfile-export
+++ b/Dockerfile-export
@@ -1,7 +1,7 @@
 # syntax = docker/dockerfile:1
 
 # Make sure it matches the Ruby version in .ruby-version and Gemfile
-ARG RUBY_VERSION=4.0.7
+ARG RUBY_VERSION=4.0.9
 FROM ruby:$RUBY_VERSION-slim as base
 
 # Install the tools we need