diff --git a/rest-service/requirements.txt b/rest-service/requirements.txt
index 7d574c6a0d..b9d699e23c 100644
--- a/rest-service/requirements.txt
+++ b/rest-service/requirements.txt
@@ -83,7 +83,7 @@ flask-principal==0.4.0
     # via flask-security
 flask-restful==0.3.10
     # via cloudify-rest-service (setup.py)
-flask-security==3.0.0
+flask-security==5.5.1
     # via cloudify-rest-service (setup.py)
 flask-sqlalchemy==2.5.1
     # via