diff --git a/setup.py b/setup.py
index 1eae2781ee3656ede80da6d299cc15f2d693c293..8ad1dc1a53482abfcb30950c684fb2f05a9ef00f 100644
--- a/setup.py
+++ b/setup.py
@@ -33,6 +33,7 @@ setup(
               'aiogremlin.process',
               'aiogremlin.structure',
               'aiogremlin.remote'],
+    python_requires='>=3.5',
     install_requires=[
         'gremlinpython<=3.4.3',
         'aenum>=1.4.5',  # required gremlinpython dep