diff --git a/pkgs/development/python-modules/mlflow-skinny/default.nix b/pkgs/development/python-modules/mlflow-skinny/default.nix
index 7683c7c045fb..9f5a818c7a82 100644
--- a/pkgs/development/python-modules/mlflow-skinny/default.nix
+++ b/pkgs/development/python-modules/mlflow-skinny/default.nix
@@ -1,5 +1,7 @@
 {
+  lib,
   buildPythonPackage,
+  fetchFromGitHub,
   mlflow,
 
   # build-system
@@ -30,10 +32,17 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "mlflow-skinny";
-  inherit (mlflow) version src;
+  inherit (mlflow) version;
   pyproject = true;
   __structuredAttrs = true;
 
+  src = fetchFromGitHub {
+    owner = "mlflow";
+    repo = "mlflow";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-OxhM+KCem0sb9cwtyzrUD/MGfoiiCfgU47qipYRDaFk=";
+  };
+
   sourceRoot = "${finalAttrs.src.name}/libs/skinny";
 
   build-system = [ setuptools ];
@@ -69,5 +78,6 @@ buildPythonPackage (finalAttrs: {
   meta = mlflow.meta // {
     description = "Lightweight version of MLflow that is designed to minimize package size";
     homepage = "https://github.com/mlflow/mlflow/tree/master/libs/skinny";
+    sourceProvenance = with lib.sourceTypes; [ fromSource ];
   };
 })
diff --git a/pkgs/development/python-modules/mlflow-tracing/default.nix b/pkgs/development/python-modules/mlflow-tracing/default.nix
index ca76c7112bad..9f78d2dcaa32 100644
--- a/pkgs/development/python-modules/mlflow-tracing/default.nix
+++ b/pkgs/development/python-modules/mlflow-tracing/default.nix
@@ -1,6 +1,7 @@
 {
   lib,
   buildPythonPackage,
+  fetchFromGitHub,
   mlflow,
 
   # build-system
@@ -15,9 +16,6 @@
   packaging,
   protobuf,
   pydantic,
-
-  # tests
-  pytestCheckHook,
 }:
 buildPythonPackage (finalAttrs: {
   pname = "mlflow-tracing";
@@ -25,13 +23,16 @@ buildPythonPackage (finalAttrs: {
   pyproject = true;
   __structuredAttrs = true;
 
-  inherit (mlflow) src;
+  src = fetchFromGitHub {
+    owner = "mlflow";
+    repo = "mlflow";
+    rev = "v${finalAttrs.version}";
+    hash = "sha256-OxhM+KCem0sb9cwtyzrUD/MGfoiiCfgU47qipYRDaFk=";
+  };
 
   sourceRoot = "${finalAttrs.src.name}/libs/tracing";
 
-  build-system = [
-    setuptools
-  ];
+  build-system = [ setuptools ];
 
   dependencies = [
     cachetools
@@ -53,6 +54,9 @@ buildPythonPackage (finalAttrs: {
     description = "Open-Source SDK for observability and monitoring GenAI applications";
     homepage = "https://github.com/mlflow/mlflow/tree/master/libs/tracing";
     inherit (mlflow.meta) license;
-    maintainers = with lib.maintainers; [ GaetanLepage ];
+    maintainers = with lib.maintainers; [
+      GaetanLepage
+      gquetel
+    ];
   };
 })