diff --git a/requirements_dev.txt b/requirements_dev.txt
index 298e3a5..6ab885e 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,7 +1,7 @@
 pip==20.0.2
 wheel==0.34.2
 flake8==3.7.9
-tox==3.14.4
+tox==3.14.5
 coverage==5.0.3
 Sphinx==2.4.1
 pytest==5.3.5