diff --git a/web-requirements.txt b/web-requirements.txt
index 4b9fc4c..b89be7d 100644
--- a/web-requirements.txt
+++ b/web-requirements.txt
@@ -38,7 +38,7 @@ pyrsistent==0.14.11
 python-dateutil==2.8.0
 python-levenshtein==0.12.0
 pytz==2019.3              # via flask-restful
-pyyaml==5.1
+pyyaml==5.4
 raven[flask]==6.10.0
 redis==3.3.11             # via flask-rq2, rq
 retrying==1.3.3