diff --git a/setup.cfg b/setup.cfg
index 3503dc9..1701239 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -58,7 +58,7 @@ install_requires =
 
 [options.extras_require]
 test =
-    hcloud >= 1.6.3
+    hcloud >= 1.6.3, < 2
     mock >= 4.0.2, < 5
     pytest-cov >= 2.8.1, < 3
     pytest-helpers-namespace >= 2019.1.8, < 2020