diff --git a/Dockerfile b/Dockerfile
index 62a4763..2e80994 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -19,7 +19,7 @@ WORKDIR /home/git
 # for autosign feature
 ENV GNUPGHOME="/app/data/gnupg"
 
-ARG VERSION=1.21.4
+ARG VERSION=1.21.5
 
 RUN curl -L https://dl.gitea.io/gitea/${VERSION}/gitea-${VERSION}-linux-amd64 -o /home/git/gitea/gitea \
     && chmod +x /home/git/gitea/gitea