diff --git a/setup.py b/setup.py
index 7119506..71ee619 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@ setup(name="magic-wormhole-transit-relay",
       package_data={"wormhole_transit_relay": ["db-schemas/*.sql"]},
       install_requires=[
           "twisted >= 21.2.0",
-          "autobahn >= 21.3.1",
+          "autobahn",
       ],
       extras_require={
           ':sys_platform=="win32"': ["pypiwin32"],