diff --git a/dockerfiles/rubygems/Dockerfile b/dockerfiles/rubygems/Dockerfile
index 2cc8c2a..b5a4495 100644
--- a/dockerfiles/rubygems/Dockerfile
+++ b/dockerfiles/rubygems/Dockerfile
@@ -1,6 +1,6 @@
 FROM ruby:2.7-alpine
 RUN gem install rubygems-mirror
-RUN apk add bash
+RUN apk add bash curl
 # the command timeout provided by old verison of busybox was incompatible with that from coreutils and is compatible now. 
 ENV BUSYBOX=0
 ENV HOME=/tmp
diff --git a/rubygems.sh b/rubygems.sh
index f32dba2..e12d279 100755
--- a/rubygems.sh
+++ b/rubygems.sh
@@ -40,4 +40,10 @@ if [[ $ret == 124 ]]; then
 	echo 'Sync timeout (/_\\)'
 fi
 
+if [[ $ret == 0 ]]; then
+	curl -fsSL https://rubygems.org/versions > "$TUNASYNC_WORKING_DIR/.versions.new" && \
+		mv "$TUNASYNC_WORKING_DIR/.versions.new" "$TUNASYNC_WORKING_DIR/versions"
+	ret=$?
+fi
+
 exit $ret