diff --git a/requirements.txt b/requirements.txt
index a5df69c0787..7f131991e4d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -56,4 +56,4 @@ ptvsd>=4.2.7
 google-api-python-client==1.7.11
 google-auth==1.6.3
 google-auth-oauthlib==0.3.0
-drf_yasg==1.17.0
+drf_yasg==1.20.0