diff --git a/requirements.txt b/requirements.txt
index ea9f8d2..3cc5caa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-PyYAML==3.11
+PyYAML==5.4
 argparse==1.2.1
 coverage==3.7.1
 coveralls==0.4.4