diff --git a/requirements.txt b/requirements.txt
index 7ee21ae..023f0eb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 cliff==2.2.0
 pandas==0.18.1
 pyasn1==0.1.9
-PyYAML==3.12
+PyYAML==5.1
 requests==2.11.1
 rsa==3.2.3
 tabulate==0.7.7