diff --git a/requirements_test.txt b/requirements_test.txt
index 1d64fc0..f2d78f0 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -1,4 +1,4 @@
-coverage==4.5.4
+coverage==5.1
 flake8==3.7.9
 flake8-docstrings==1.5.0
 pylint==2.4.4