diff --git a/test/Dockerfile.bionic b/test/Dockerfile.bionic
index cc6405445d..ec7f35fc11 100644
--- a/test/Dockerfile.bionic
+++ b/test/Dockerfile.bionic
@@ -79,7 +79,7 @@ RUN install-tool poetry 1.1.8
 # renovate: datasource=github-releases lookupName=containerbase/ruby-prebuild versioning=ruby
 RUN install-tool ruby 3.0.2
 # renovate: datasource=rubygems versioning=ruby
-RUN install-gem bundler 2.2.26
+RUN install-gem bundler 2.2.27
 # renovate: datasource=rubygems versioning=ruby
 RUN install-gem cocoapods 1.11.0
 
diff --git a/test/ruby/Dockerfile b/test/ruby/Dockerfile
index 33e94e5bfd..40a7dbcb32 100644
--- a/test/ruby/Dockerfile
+++ b/test/ruby/Dockerfile
@@ -58,7 +58,7 @@ RUN set -ex; \
 FROM build as testb
 
 # renovate: datasource=rubygems versioning=ruby
-RUN install-gem bundler 2.2.26
+RUN install-gem bundler 2.2.27
 
 USER 1000