diff --git a/requirements.txt b/requirements.txt
index bc9e2a7..ec82f51 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-PyYAML==3.11
+PyYAML==5.1
 argparse==1.2.1
 coverage==3.7.1
 pep8==1.5.7