diff --git a/release/release-ci.sh b/release/release-ci.sh
index 0ec6f9d4..023dffce 100644
--- a/release/release-ci.sh
+++ b/release/release-ci.sh
@@ -64,6 +64,14 @@ curl -L -o release/config/geoip.dat "https://github.com/v2ray/geoip/releases/dow
 
 # Take a snapshot of all required source code
 pushd $GOPATH/src
+
+# Flatten vendor directories
+cp -r v2ray.com/core/vendor/github.com/ ./github.com/
+rm -rf v2ray.com/core/vendor/github.com/
+cp -r github.com/lucas-clemente/quic-go/vendor/github.com/
+rm -rf github.com/lucas-clemente/quic-go/vendor/
+
+# Create zip file for all sources
 zip -9 -r /v2/build/src_all.zip * -x '*.git*'
 popd