diff --git a/requirements/base.txt b/requirements/base.txt
index c0509baac4e..fb2ab61bc7b 100644
--- a/requirements/base.txt
+++ b/requirements/base.txt
@@ -1,4 +1,4 @@
 kaptan>=0.5.10
-libtmux>=0.8<0.9
-click>=7<8
+libtmux>=0.8,<0.9
+click>=7,<8
 colorama>=0.3.9