diff --git a/py.requirements/environment.txt b/py.requirements/environment.txt
index e4bf9f24..03cb2091 100644
--- a/py.requirements/environment.txt
+++ b/py.requirements/environment.txt
@@ -5,7 +5,7 @@
 
 bumpversion==0.5.3
 twine==1.12.1
-PyYAML==5.1.1
+PyYAML==6.0.1
 
 codacy-coverage==1.3.11
 pytest==4.6.3