diff --git a/pkgs/development/python-modules/cometx/default.nix b/pkgs/development/python-modules/cometx/default.nix
index c232b0b2c56a..dcb8d0a3dfd9 100644
--- a/pkgs/development/python-modules/cometx/default.nix
+++ b/pkgs/development/python-modules/cometx/default.nix
@@ -17,7 +17,7 @@
 
 buildPythonPackage rec {
   pname = "cometx";
-  version = "3.1.0";
+  version = "3.4.3";
 
   pyproject = true;
   build-system = [ setuptools ];
@@ -26,7 +26,7 @@ buildPythonPackage rec {
     owner = "comet-ml";
     repo = "cometx";
     tag = version;
-    hash = "sha256-7rxEJNmJsFExfvYCuO/JOgj7yRFBjceE1bhRL1hFoPU=";
+    hash = "sha256-Wb4En/fTXeC5kvOIVAQzKxl8HXyOYvG4OGWhKhrAP6g=";
   };
 
   dependencies = [
@@ -51,7 +51,7 @@ buildPythonPackage rec {
   meta = {
     description = "Open source extensions for the Comet SDK";
     homepage = "https://github.com/comet-ml/comet-sdk-extensions/";
-    changelog = "https://github.com/comet-ml/cometx/releases/tag/${version}";
+    changelog = "https://github.com/comet-ml/cometx/releases/tag/${src.tag}";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ jherland ];
     mainProgram = "cometx";