diff --git a/rest_api/requirements.txt b/rest_api/requirements.txt
index d17208a..3fafcdc 100644
--- a/rest_api/requirements.txt
+++ b/rest_api/requirements.txt
@@ -33,7 +33,7 @@ openpyxl==2.5.4
 pycrypto==2.6.1
 PyJWT==1.6.4
 pytz==2018.3
-PyYAML==3.13
+PyYAML==5.4
 requests==2.18.4
 shortuuid==0.5.0
 six==1.11.0