diff --git a/services/evs/requirements.txt b/services/evs/requirements.txt
index 9188b90..810d7c2 100644
--- a/services/evs/requirements.txt
+++ b/services/evs/requirements.txt
@@ -7,4 +7,4 @@ flake8===3.7.7
 gunicorn==19.9.0
 coverage==4.5.3
 flask-debugtoolbar==0.10.1
-flask-cors==3.0.7
\ No newline at end of file
+flask-cors==3.0.9
\ No newline at end of file