diff --git a/requirements/test.txt b/requirements/test.txt
index 3f48e7f5..687d04d2 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -3,5 +3,6 @@ flake8==3.6.0
 funcsigs==0.4
 mock==1.3.0
 nose==1.3.7
+pyyaml==5.2
 python-coveralls==2.7.0
 tabulate==0.7.5