diff --git a/requirements.txt b/requirements.txt
index a3b5113..8cdef56 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ click==6.7
 packaging==16.8
 py==1.4.32
 pyparsing==2.1.10
-PyYAML==3.12
+PyYAML==5.4
 six==1.10.0
 backports.functools_lru_cache==1.0.1
 enum34==1.1.6