1 files changed, 1 insertions, 1 deletions

diff --git a/setup.py b/setup.py
index 78b6025b8..c3735744d 100644
--- a/setup.py
+++ b/setup.py
@@ -103,7 +103,7 @@ case second `m'.  Any other spelling is incorrect.""",
         'console_scripts' : list(scripts),
         },
     install_requires = [
-        'aiosmtpd',
+        'aiosmtpd>=1.0a5',
         'alembic',
         'atpublic',
         'dnspython>=1.14.0',