diff --git a/requirements.txt b/requirements.txt
index 610702d..82b480c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,4 +7,7 @@ PyYAML>=5.0.0,<6.0.0
 Jinja2>=2.0.0,<3.0.0
 cryptography>=2.0.0,<3.0.0
 python-dateutil>=2.0.0,<3.0.0
-SQLAlchemy==1.3.4
+SQLAlchemy>=1.0.0,<2.0.0
+pytest>=5.0.0,<6.0.0
+pylint>=2.0.0,<3.0.0
+rope>=0.0.0,<1.0.0