diff --git a/Dockerfile.www-gitlab-com-3.0 b/Dockerfile.www-gitlab-com-3.0
index fd58b46..d3ecb82 100644
--- a/Dockerfile.www-gitlab-com-3.0
+++ b/Dockerfile.www-gitlab-com-3.0
@@ -1,6 +1,6 @@
 FROM gcr.io/google.com/cloudsdktool/cloud-sdk as gcloud-sdk
 
-FROM ruby:3.0.2-slim-buster
+FROM ruby:3.0.3-slim-buster
 
 ADD /scripts/ /scripts/
 RUN /scripts/install-www-gitlab-com
diff --git a/patches/ruby/3.0.2/dont_alias_array_size.patch b/patches/ruby/3.0.3/dont_alias_array_size.patch
similarity index 100%
rename from patches/ruby/3.0.2/dont_alias_array_size.patch
rename to patches/ruby/3.0.3/dont_alias_array_size.patch
diff --git a/patches/ruby/3.0.2/override_optimized_methods.patch b/patches/ruby/3.0.3/override_optimized_methods.patch
similarity index 100%
rename from patches/ruby/3.0.2/override_optimized_methods.patch
rename to patches/ruby/3.0.3/override_optimized_methods.patch
diff --git a/patches/ruby/3.0.2/thread-memory-allocations-3.0.patch b/patches/ruby/3.0.3/thread-memory-allocations-3.0.patch
similarity index 100%
rename from patches/ruby/3.0.2/thread-memory-allocations-3.0.patch
rename to patches/ruby/3.0.3/thread-memory-allocations-3.0.patch
diff --git a/scripts/custom-docker-build b/scripts/custom-docker-build
index b1661c9..e6192c5 100755
--- a/scripts/custom-docker-build
+++ b/scripts/custom-docker-build
@@ -227,8 +227,8 @@ function print_ruby_args() {
             ;;
 
         3.0|3.0.patched)
-            RUBY_VERSION="3.0.2"
-            RUBY_DOWNLOAD_SHA256="5085dee0ad9f06996a8acec7ebea4a8735e6fac22f22e2d98c3f2bc3bef7e6f1"
+            RUBY_VERSION="3.0.3"
+            RUBY_DOWNLOAD_SHA256="3586861cb2df56970287f0fd83f274bd92058872d830d15570b36def7f1a92ac"
             ;;
 
         *) echo "Unknown ruby version $1"; exit 1;