diff --git a/requirements/development.txt b/requirements/development.txt
index 6179ee7..84862e7 100644
--- a/requirements/development.txt
+++ b/requirements/development.txt
@@ -3,7 +3,7 @@
 bumpversion==0.5.3
 watchdog==0.8.3
 cryptography==2.3.1
-PyYAML==3.13
+PyYAML==6.0.2
 coverage==4.5.1
 pep8==1.7.1
 pylint==2.1.1