diff --git a/requirements/dev.txt b/requirements/dev.txt
index 7f93651..2b938dc 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -6,6 +6,6 @@ git+https://github.com/nicfit/gitchangelog.git
 ipdb==0.10.3
 nicfit.py[cookiecutter]==0.6.6
 pip-tools==1.11.0
-tox==2.9.1
+tox==3.14.3
 twine==1.9.1
 wheel==0.30.0