diff --git a/requirements-dev.txt b/requirements-dev.txt
index afec45c..5059edc 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -4,4 +4,4 @@ pytest==3.10.1
 numpy==1.15.4
 pytest-pep8==1.0.6
 pytest-cov==2.6.0
-coveralls==1.5.1
+coveralls==1.6.0