diff --git a/requirements_dev.txt b/requirements_dev.txt
index 9ef4da8..713f42e 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -4,7 +4,7 @@ wheel==0.33.4
 watchdog==0.9.0
 flake8==3.7.7
 tox==3.13.2
-coverage==4.5.3
+coverage==5.5
 Sphinx==3.0.4
 sphinx-click==2.2.0
 sphinxcontrib-napoleon==0.7