diff --git a/pkgs/development/python-modules/mobly/default.nix b/pkgs/development/python-modules/mobly/default.nix
index 9e82c24d1931..c91cf2697fbd 100644
--- a/pkgs/development/python-modules/mobly/default.nix
+++ b/pkgs/development/python-modules/mobly/default.nix
@@ -17,14 +17,14 @@
 
 buildPythonPackage rec {
   pname = "mobly";
-  version = "1.12";
+  version = "1.12.1";
   format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "google";
     repo = "mobly";
     rev = "refs/tags/${version}";
-    hash = "sha256-HAXm0/h5jbgVuIwP7IZ1ffUs92gcpOPiM2VgT38r8Go=";
+    hash = "sha256-8ZcjxxAv+x8vTsgVKLFb55M02gElkZcZo/nrLwG7k6k=";
   };
 
   propagatedBuildInputs = [
@@ -42,7 +42,7 @@ buildPythonPackage rec {
   ];
 
   meta = with lib; {
-    changelog = "https://github.com/google/mobly/blob/";
+    changelog = "https://github.com/google/mobly/blob/${src.rev}/CHANGELOG.md";
     description = "Automation framework for special end-to-end test cases";
     homepage = "https://github.com/google/mobly";
     license = licenses.asl20;