diff --git a/update_external_libs.sh b/update_external_libs.sh
index 5d9939702..605b8194c 100755
--- a/update_external_libs.sh
+++ b/update_external_libs.sh
@@ -4,6 +4,7 @@ go get -v -u github.com/bmizerany/pq
 go get -v -u github.com/ugorji/go/codec
 go get -v -u labix.org/v2/mgo
 go get -v -u github.com/cgrates/fsock
+go get -v -u github.com/cgrates/osipsdagram
 go get -u -v github.com/go-sql-driver/mysql
 go get -u -v github.com/hoisie/redis
 go get -u -v github.com/howeyc/fsnotify