diff --git a/Dockerfile b/Dockerfile
index e2a48f8..f9d43a0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,7 +12,7 @@ ADD . /webui-aria2
 
 # gosu install latest
 RUN GITHUB_REPO="https://github.com/tianon/gosu" \
-  && LATEST=`curl -s  $GITHUB_REPO"/releases/latest" | grep -Eo "[0-9].[0-9]"` \
+  && LATEST=`curl -s  $GITHUB_REPO"/releases/latest" | grep -Eo "[0-9].[0-9]*"` \
   && curl -L $GITHUB_REPO"/releases/download/"$LATEST"/gosu-amd64" > /usr/local/bin/gosu \
   && chmod +x /usr/local/bin/gosu