diff --git a/pkgs/development/python-modules/plotnine/default.nix b/pkgs/development/python-modules/plotnine/default.nix
index 0a71ca5c0759..51d4ab2ed56c 100644
--- a/pkgs/development/python-modules/plotnine/default.nix
+++ b/pkgs/development/python-modules/plotnine/default.nix
@@ -21,16 +21,16 @@
   writableTmpDirAsHomeHook,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "plotnine";
-  version = "0.15.2";
+  version = "0.15.3";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "has2k1";
     repo = "plotnine";
-    tag = "v${version}";
-    hash = "sha256-JjSBcPRMmxAIoQsr8ESfgcf+EWBLsq1H+q56iyD3X84=";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-nhFod9jhadKfQ8SW2RPNc8u+4gkWNDZRcnDcN5xVk54=";
   };
 
   build-system = [ setuptools-scm ];
@@ -114,8 +114,8 @@ buildPythonPackage rec {
   meta = {
     description = "Grammar of graphics for Python";
     homepage = "https://plotnine.readthedocs.io/";
-    changelog = "https://github.com/has2k1/plotnine/releases/tag/${src.tag}";
+    changelog = "https://github.com/has2k1/plotnine/releases/tag/${finalAttrs.src.tag}";
     license = lib.licenses.mit;
     maintainers = with lib.maintainers; [ onny ];
   };
-}
+})
diff --git a/pkgs/development/python-modules/statsmodels/default.nix b/pkgs/development/python-modules/statsmodels/default.nix
index c9111049f9ef..3caf52a419c9 100644
--- a/pkgs/development/python-modules/statsmodels/default.nix
+++ b/pkgs/development/python-modules/statsmodels/default.nix
@@ -1,26 +1,32 @@
 {
   lib,
+  stdenv,
   buildPythonPackage,
+  fetchFromGitHub,
+
+  # build-system
   cython,
-  fetchPypi,
   numpy,
-  packaging,
-  pandas,
-  patsy,
   scipy,
   setuptools,
   setuptools-scm,
-  stdenv,
+
+  # dependencies
+  packaging,
+  pandas,
+  patsy,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "statsmodels";
-  version = "0.14.5";
+  version = "0.14.6";
   pyproject = true;
 
-  src = fetchPypi {
-    inherit pname version;
-    hash = "sha256-3iYOWMzP0s7d+DW1WjVyM9bKhToapPkPdVOlLMccbd8=";
+  src = fetchFromGitHub {
+    owner = "statsmodels";
+    repo = "statsmodels";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-Rr+7vQ+nx8XihoQQECqHlDKvk7xRTdCpQTzs5pBbqmk=";
   };
 
   postPatch = ''
@@ -59,7 +65,7 @@ buildPythonPackage rec {
   meta = {
     description = "Statistical computations and models for use with SciPy";
     homepage = "https://www.github.com/statsmodels/statsmodels";
-    changelog = "https://github.com/statsmodels/statsmodels/releases/tag/v${version}";
+    changelog = "https://github.com/statsmodels/statsmodels/releases/tag/${finalAttrs.src.tag}";
     license = lib.licenses.bsd3;
   };
-}
+})