diff --git a/ngraph/python/requirements_test.txt b/ngraph/python/requirements_test.txt
index 16d93ebbeea..d81429ad2c4 100644
--- a/ngraph/python/requirements_test.txt
+++ b/ngraph/python/requirements_test.txt
@@ -1,10 +1,10 @@
 flake8==3.9.0
 flake8-comprehensions==3.3.0
-flake8-docstrings==1.5.0
+flake8-docstrings==1.6.0
 flake8-quotes==3.2.0
 onnx==1.8.1
 pydocstyle==5.1.1
 pytest==6.1.2
 retrying==1.3.3
-tox==3.22.0
+tox==3.23.0
 wheel==0.35.1