diff --git a/setup.py b/setup.py
index 6dc1373be..4ed926ae9 100644
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@
         'psutil',
         'scipy',
         'seaborn==0.8.1',
-        'tensorflow>=1.8.0',
+        'tensorflow>=1.8.0,<2.0',
         'tqdm'
     ],
     description="Teaching tools for introducing people to deep RL.",