diff --git a/perspective_reddit_bot/requirements.txt b/perspective_reddit_bot/requirements.txt
index 9579eef..64dc379 100644
--- a/perspective_reddit_bot/requirements.txt
+++ b/perspective_reddit_bot/requirements.txt
@@ -17,7 +17,7 @@ prawcore==0.14.0
 pylint==1.9.0
 python-dateutil==2.7.3
 pytz==2018.4
-PyYAML==4.2b1
+PyYAML==5.4
 requests==2.20.0
 scikit-learn==0.19.2
 scipy==1.1.0