diff --git a/requirements/base.txt b/requirements/base.txt
index 21b0889..d946a6f 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -47,7 +47,7 @@ PyHamcrest==1.9.0
 python-coveralls==2.9.3
 python-slugify==4.0.1  # https://github.com/un33k/python-slugify
 pytz==2019.2  # https://github.com/stub42/pytz
-PyYAML==5.1.2
+PyYAML==5.3.1
 redis==3.3.8  # https://github.com/antirez/redis
 sentry-asgi==0.2.0
 sentry-sdk==0.12.2  # https://github.com/getsentry/sentry-python