diff --git a/release/install.sh b/release/install.sh
index 6cb9bafe3..0f0eb4d4a 100755
--- a/release/install.sh
+++ b/release/install.sh
@@ -30,6 +30,6 @@ if [ -z "$GOPATH" ]; then
   export GOPATH=/v2ray
 fi
 
-go get github.com/v2ray/v2ray-core
+go get -u github.com/v2ray/v2ray-core
 go build -o $GOPATH/bin/v2ray -compiler gc github.com/v2ray/v2ray-core/release/server