diff --git a/pkgs/development/python-modules/simple-salesforce/default.nix b/pkgs/development/python-modules/simple-salesforce/default.nix
index 6f4286c7064b..846d4da8cb19 100644
--- a/pkgs/development/python-modules/simple-salesforce/default.nix
+++ b/pkgs/development/python-modules/simple-salesforce/default.nix
@@ -17,14 +17,14 @@
 
 buildPythonPackage rec {
   pname = "simple-salesforce";
-  version = "1.12.6";
+  version = "1.12.9";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "simple-salesforce";
     repo = "simple-salesforce";
     tag = "v${version}";
-    hash = "sha256-nrfIyXftS2X2HuuLFRZpWLz/IbRasqUzv+r/HvhxfAw=";
+    hash = "sha256-eMO/K6W9ROljYxR3gK9QjCHdlbAuN4DYjOyTO1WcalQ=";
   };
 
   nativeBuildInputs = [ setuptools ];
@@ -50,7 +50,7 @@ buildPythonPackage rec {
   meta = {
     description = "Very simple Salesforce.com REST API client for Python";
     homepage = "https://github.com/simple-salesforce/simple-salesforce";
-    changelog = "https://github.com/simple-salesforce/simple-salesforce/blob/v${version}/CHANGES";
+    changelog = "https://github.com/simple-salesforce/simple-salesforce/blob/${src.tag}/CHANGES";
     license = lib.licenses.asl20;
     maintainers = [ ];
   };