diff --git a/test-requirements.txt b/test-requirements.txt
index 9f12431..3f4a95c 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,4 +1,4 @@
-pytest
+pytest>=4.6
 pytest-flake8
 pytest-cov
 PyHamcrest>=2.0.2