diff --git a/dockerfiles/alpine.Dockerfile b/dockerfiles/alpine.Dockerfile
index cd3502d..e4682dc 100644
--- a/dockerfiles/alpine.Dockerfile
+++ b/dockerfiles/alpine.Dockerfile
@@ -20,7 +20,6 @@ RUN \
 
 RUN \
   --mount=type=cache,id=usr-local-bundle-cache-${TARGETARCH},target=${BUNDLE_PATH},sharing=locked \
-  gem update --system --no-document; \
   gem install -N bundler
 
 FROM base AS build