diff --git a/requirements.txt b/requirements.txt
index 0b5eaa7..136d47f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ pytest-cov==2.5.1
 pytest-cover==3.0.0
 pytest-coverage==0.0
 pytz==2018.3
-PyYAML==3.12
+PyYAML==5.4
 requests==2.18.4
 six==1.11.0
 snowballstemmer==1.2.1