diff --git a/setup.py b/setup.py
index 86a7d976f9..0ca769f611 100644
--- a/setup.py
+++ b/setup.py
@@ -61,7 +61,6 @@ def get_packages(package):
         "sniffio",
         "rfc3986[idna2008]>=1.3,<2",
         "httpcore>=0.14.5,<0.15.0",
-        "async_generator; python_version < '3.7'"
     ],
     extras_require={
         "http2": "h2>=3,<5",