diff --git a/requirements_test.txt b/requirements_test.txt
index ee5e09a..e3f80aa 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -10,7 +10,7 @@ pip==9.0.1
 wheel==0.29.0
 flake8==3.2.1
 tox==2.5.0
-coverage==4.3.1
+coverage==4.3.4
 pytest==3.0.6
 pytest_cov==2.4.0
 pytest-runner==2.11
\ No newline at end of file