diff --git a/databuilder/setup.py b/databuilder/setup.py
index 42ac4e9a46..63f20e516b 100644
--- a/databuilder/setup.py
+++ b/databuilder/setup.py
@@ -30,7 +30,7 @@
     'snowflake-sqlalchemy'
 ]
 
-athena = ['PyAthena[SQLAlchemy]>=1.0.0']
+athena = ['PyAthena[SQLAlchemy]>=1.0.0, <2.0.0']
 
 # Python API client for google
 # License: Apache Software License