diff --git a/setup.py b/setup.py
index f3b2f6c..c6066b2 100644
--- a/setup.py
+++ b/setup.py
@@ -17,8 +17,8 @@ setup(name='buildbot-gitea',
       long_description=long_description,
       long_description_content_type="text/markdown",
       packages=['buildbot_gitea'],
-      requires=[
-          "buildbot (>=2.9.0)"
+      install_requires=[
+          "buildbot>=2.9.0,<3.0.0"
       ],
       entry_points={
           "buildbot.webhooks": [