diff --git a/requirements.txt b/requirements.txt
index 17a58fd..ee2a475 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,7 +19,7 @@ pyasn1==0.2.3
 pyasn1-modules==0.0.8
 Pygments==2.1.3
 pyparsing==2.2.0
-PyYAML==3.12
+PyYAML==5.4
 requests==2.13.0
 rsa==3.4.2
 simplegeneric==0.8.1