diff --git a/requirements/requirements-testing.txt b/requirements/requirements-testing.txt
index 28f0d447c..e0db14d44 100644
--- a/requirements/requirements-testing.txt
+++ b/requirements/requirements-testing.txt
@@ -1,3 +1,4 @@
+# Pytest for running the tests.
 pytest==3.4.0
 pytest-django==3.1.2
 pytest-cov==2.5.1