diff --git a/requirements.txt b/requirements.txt
index 6a4740e..5a46b8b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ lenses==0.5.0
 hypothesis==4.24.1
 parsimonious==0.8.1
 pytest==4.6.2
-pytest-cov==2.6.1
+pytest-cov==2.7.1
 pytest-flake8==1.0.4
 pytest-xdist==1.27.0
 pytest-sugar==0.9.2