diff --git a/pkgs/development/python-modules/mobly/default.nix b/pkgs/development/python-modules/mobly/default.nix
index 046edf9a3da1..dc76a6d6ea09 100644
--- a/pkgs/development/python-modules/mobly/default.nix
+++ b/pkgs/development/python-modules/mobly/default.nix
@@ -21,14 +21,14 @@
 
 buildPythonPackage rec {
   pname = "mobly";
-  version = "1.12.3";
+  version = "1.12.4";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "google";
     repo = "mobly";
     rev = "refs/tags/${version}";
-    hash = "sha256-hhI1jrHJk4wo49MK8J4VTS2dGmHG2kwzgZeSWBXdXkA=";
+    hash = "sha256-77wZK5dqxXUkOgWE7NBpGJBbbtYYxRCJwPbtwLIX09I=";
   };
 
   build-system = [ setuptools ];