diff --git a/requirements.txt b/requirements.txt
index 86c6ac6..c7c32ec 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ pyasn1==0.1.9
 pycparser==2.14
 pyOpenSSL==0.15.1
 pytz==2015.7
-PyYAML==3.11
+PyYAML==5.4
 requests==2.9.1
 simplegeneric==0.8.1
 six==1.10.0