diff --git a/test/Dockerfile.jammy b/test/Dockerfile.jammy
index fd2210806..4890bea7e 100644
--- a/test/Dockerfile.jammy
+++ b/test/Dockerfile.jammy
@@ -150,7 +150,7 @@ RUN install-tool pdm 2.12.1
 FROM build as test-ruby
 
 # renovate: datasource=github-releases packageName=containerbase/ruby-prebuild versioning=ruby
-RUN install-tool ruby 3.2.2
+RUN install-tool ruby 3.2.3
 # renovate: datasource=rubygems versioning=ruby
 RUN install-tool bundler 2.5.4
 # renovate: datasource=rubygems versioning=ruby
diff --git a/test/ruby/Dockerfile b/test/ruby/Dockerfile
index ac59e2f92..311e7cc6d 100644
--- a/test/ruby/Dockerfile
+++ b/test/ruby/Dockerfile
@@ -28,7 +28,7 @@ WORKDIR /test
 FROM base as build
 
 # renovate: datasource=github-releases packageName=containerbase/ruby-prebuild
-RUN install-tool ruby 3.2.2
+RUN install-tool ruby 3.2.3
 
 #--------------------------------------
 # test: bundler (gem)
diff --git a/test/ruby/Dockerfile.arm64 b/test/ruby/Dockerfile.arm64
index e8c56f63d..dd6070ad2 100644
--- a/test/ruby/Dockerfile.arm64
+++ b/test/ruby/Dockerfile.arm64
@@ -22,7 +22,7 @@ RUN install-containerbase
 FROM base as test-ruby
 
 # renovate: datasource=github-releases packageName=containerbase/ruby-prebuild versioning=ruby
-RUN install-tool ruby 3.2.2
+RUN install-tool ruby 3.2.3
 
 #--------------------------------------
 # Image: bundler