diff --git a/util/mirror-tarballs b/util/mirror-tarballs
index 61f1a48..a6dc03b 100755
--- a/util/mirror-tarballs
+++ b/util/mirror-tarballs
@@ -562,7 +562,7 @@ mv openresty-lua-resty-websocket-* lua-resty-websocket-$ver || exit 1
 
 #################################
 
-ver=0.03
+ver=0.04
 $root/util/get-tarball "https://github.com/openresty/lua-resty-lock/tarball/v$ver" -O "lua-resty-lock-$ver.tar.gz" || exit 1
 tar -xzf lua-resty-lock-$ver.tar.gz || exit 1
 mv openresty-lua-resty-lock-* lua-resty-lock-$ver || exit 1