diff --git a/Dockerfile b/Dockerfile
index b4c6516..5ee1df5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ RUN adduser --disabled-password --gecos '' gitea
 
 # upgrade git to v2.33.0
 RUN curl -SL https://github.com/git/git/archive/v2.33.0.tar.gz \
-    | tar -xzv -C /go \
+    | tar -xzf -C /go \
     && apt-get update \
     && apt-get install -y libcurl4-gnutls-dev libexpat1-dev gettext libz-dev libssl-dev \
     && make -C /go/git-2.33.0 prefix=/usr all \