diff --git a/requirements.txt b/requirements.txt
index 9cfb309..684993a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -124,7 +124,7 @@ python-slugify==1.2.6
 pytorch-pretrained-bert==0.6.2
 pytorch-transformers==1.1.0
 pytz==2018.7
-PyYAML==3.13
+PyYAML==5.4
 pyzmq==17.1.2
 qtconsole==4.5.5
 regex==2018.1.10