diff --git a/api/requirements/base.txt b/api/requirements/base.txt
index db6d43eaa..35d71c276 100644
--- a/api/requirements/base.txt
+++ b/api/requirements/base.txt
@@ -72,3 +72,6 @@ markdown~=3.2.0
 bleach~=3.1.0
 feedparser~=6.0.0
 watchdog~=1.0.2
+
+## Pin third party dependency to avoid issue with latest version
+twisted==20.3.0