diff --git a/setup.py b/setup.py
index 43b6b36..0305896 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@ from setuptools import setup
 
 requirements = [
     # https://github.com/mitsuhiko/click/issues/200
-    "click>=5.0",
+    "click>=5.0,<9.0",
     "click-log>=0.3.0, <0.4.0",
     # https://github.com/pimutils/vdirsyncer/issues/478
     "click-threading>=0.5",