diff --git a/requirements-dev.txt b/requirements-dev.txt
index 586d311b..b770d5b0 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,3 +1,4 @@
-pytest>=3.0.0
+pytest>=3.0.0,<=3.0.1
 flake8
-hypothesis<=3.8.3
+hypothesis<=3.0.0
+importlib