diff --git a/requirements.txt b/requirements.txt
index 50d9bf8..5dc0c04 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ lenses==0.5.0
 hypothesis==3.66.30
 parsimonious==0.8.1
 pytest==3.2.3
-pytest-cov==2.5.1
+pytest-cov==2.6.1
 pytest-flake8==0.9
 pytest-sugar==0.9.1
 pytest-xdist==1.22.5