diff --git a/requirements.txt b/requirements.txt
index 7f6952ba..a7079592 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,3 +4,6 @@ watchdog==0.10.3
 # argh==0.26.2 watchdog dep
 # pyyaml==5.3.1 watchdog dep
 semantic-version==2.8.5
+
+# Base requirement for MacOS
+pyobjc; sys_platform == 'darwin'