diff --git a/requirements_test.txt b/requirements_test.txt
index 4398e67a..7db9ec2e 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -3,7 +3,7 @@
 # new version
 flake8-docstrings==1.5.0
 flake8==3.7.9
-pydocstyle==5.0.2
+pydocstyle==6.1.1
 pylint==2.4.4
 mock-open==1.3.1
 mypy==0.761