diff --git a/requirements.txt b/requirements.txt
index 2c788e1..2d31f79 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -24,7 +24,7 @@ ptyprocess==0.5.2
 Pygments==2.2.0
 python-coveralls==2.9.1
 pytz==2017.2
-PyYAML==3.12
+PyYAML==5.4
 requests==2.18.3
 simplegeneric==0.8.1
 six==1.10.0