Update test dependencies
diff --git a/python-toolbox/setup.py b/python-toolbox/setup.py
index cec9ce1..5f733d4 100644
--- a/python-toolbox/setup.py
+++ b/python-toolbox/setup.py
@@ -91,9 +91,9 @@
     'pytest>=2.9.2',
     'pytest-cov>=1.8.1,<2.6',
     'pytest-watch>=4.1.0',
-    'pytest-testmon>=0.8.2',
+    'pytest-testmon==0.8.2',
     'Keras>=2.2.0',
-    'tensorflow>=1.8.0',
+    'tensorflow==2.0',
 ]
 # This is normally an empty list
 DEPENDENCY_LINKS_EXTERNAL = []