diff --git a/pack.sh b/pack.sh
index 58f67ae..6b386f1 100755
--- a/pack.sh
+++ b/pack.sh
@@ -11,6 +11,16 @@ rm pack -rf
 rm pack.zip -f
 mkdir pack
 
+go get -u -v github.com/esrrhs/pingtunnel/...
+last=`pwd`
+cd $GOPATH/src/golang.org/x
+for dir in `ls`; do
+  cd $dir
+  git pull
+  cd ..
+done
+cd $last
+
 for line in $build_list; do
   os=$(echo "$line" | awk -F"/" '{print $1}')
   arch=$(echo "$line" | awk -F"/" '{print $2}')