diff --git a/.github/workflows/test-ruby.yml b/.github/workflows/test-ruby.yml
index 3a78f8b43d..b28f5261c2 100644
--- a/.github/workflows/test-ruby.yml
+++ b/.github/workflows/test-ruby.yml
@@ -115,8 +115,8 @@ jobs:
       matrix:
         ruby-version:
           - '3.1'
+          - '3.2'
           - '.ruby-version'
-          - '3.3'
     steps:
       - uses: actions/checkout@v4
 
@@ -190,8 +190,8 @@ jobs:
       matrix:
         ruby-version:
           - '3.1'
+          - '3.2'
           - '.ruby-version'
-          - '3.3'
 
     steps:
       - uses: actions/checkout@v4
@@ -289,8 +289,8 @@ jobs:
       matrix:
         ruby-version:
           - '3.1'
+          - '3.2'
           - '.ruby-version'
-          - '3.3'
         search-image:
           - docker.elastic.co/elasticsearch/elasticsearch:7.17.13
         include:
diff --git a/.ruby-version b/.ruby-version
index 351227fca3..bea438e9ad 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.2.4
+3.3.1
diff --git a/Dockerfile b/Dockerfile
index a95d41a65b..4278242bc9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,15 +7,15 @@
 ARG TARGETPLATFORM=${TARGETPLATFORM}
 ARG BUILDPLATFORM=${BUILDPLATFORM}
 
-# Ruby image to use for base image, change with [--build-arg RUBY_VERSION="3.2.4"]
-ARG RUBY_VERSION="3.2.4"
+# Ruby image to use for base image, change with [--build-arg RUBY_VERSION="3.3.1"]
+ARG RUBY_VERSION="3.3.1"
 # # Node version to use in base image, change with [--build-arg NODE_MAJOR_VERSION="20"]
 ARG NODE_MAJOR_VERSION="20"
 # Debian image to use for base image, change with [--build-arg DEBIAN_VERSION="bookworm"]
 ARG DEBIAN_VERSION="bookworm"
 # Node image to use for base image based on combined variables (ex: 20-bookworm-slim)
 FROM docker.io/node:${NODE_MAJOR_VERSION}-${DEBIAN_VERSION}-slim as node
-# Ruby image to use for base image based on combined variables (ex: 3.2.4-slim-bookworm)
+# Ruby image to use for base image based on combined variables (ex: 3.3.1-slim-bookworm)
 FROM docker.io/ruby:${RUBY_VERSION}-slim-${DEBIAN_VERSION} as ruby
 
 # Resulting version string is vX.X.X-MASTODON_VERSION_PRERELEASE+MASTODON_VERSION_METADATA
diff --git a/Gemfile.lock b/Gemfile.lock
index 620da84992..18564ea68b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -952,7 +952,7 @@ DEPENDENCIES
   xorcist (~> 1.1)
 
 RUBY VERSION
-   ruby 3.2.3p157
+   ruby 3.3.1p55
 
 BUNDLED WITH
    2.5.9