diff --git a/pkgs/development/python-modules/deepdiff/default.nix b/pkgs/development/python-modules/deepdiff/default.nix
index 2601eedc2fa..cba0ac56396 100644
--- a/pkgs/development/python-modules/deepdiff/default.nix
+++ b/pkgs/development/python-modules/deepdiff/default.nix
@@ -8,19 +8,20 @@
 , numpy
 , pytestCheckHook
 , pyyaml
+, pythonOlder
 }:
 
 buildPythonPackage rec {
   pname = "deepdiff";
-  version = "5.7.0";
+  version = "5.8.2";
   format = "setuptools";
 
-  # pypi source does not contain all fixtures required for tests
+  disabled = pythonOlder "3.6";
+
   src = fetchFromGitHub {
     owner = "seperman";
     repo = "deepdiff";
-    # 5.7.0 release not tagged https://github.com/seperman/deepdiff/issues/300
-    rev = "f2ffdb83b2993f4f0bb7e854620f0acd0bf6339e";
+    rev = "v${version}";
     hash = "sha256-0UBx7sH2iMrLVl5FtHNTwoecLHi8GbInn75G3FSg4gk=";
   };
 
@@ -48,10 +49,15 @@ buildPythonPackage rec {
     pyyaml
   ];
 
+  disabledTests = [
+    # Assertion issue with the decimal places
+    "test_get_numeric_types_distance"
+  ];
+
   meta = with lib; {
     description = "Deep Difference and Search of any Python object/data";
     homepage = "https://github.com/seperman/deepdiff";
     license = licenses.mit;
-    maintainers = [ maintainers.mic92 ];
+    maintainers = with maintainers; [ mic92 ];
   };
 }
diff --git a/pkgs/development/python-modules/marshmallow-oneofschema/default.nix b/pkgs/development/python-modules/marshmallow-oneofschema/default.nix
index a4b15ce9a54..8fc946305bc 100644
--- a/pkgs/development/python-modules/marshmallow-oneofschema/default.nix
+++ b/pkgs/development/python-modules/marshmallow-oneofschema/default.nix
@@ -1,22 +1,43 @@
-{ lib, buildPythonPackage, fetchPypi, marshmallow, setuptools }:
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, marshmallow
+, pytestCheckHook
+, pythonOlder
+, setuptools
+}:
 
 buildPythonPackage rec {
   pname = "marshmallow-oneofschema";
   version = "3.0.1";
+  format = "setuptools";
 
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "62cd2099b29188c92493c2940ee79d1bf2f2619a71721664e5a98ec2faa58237";
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "marshmallow-code";
+    repo = pname;
+    rev = version;
+    hash = "sha256-x0v8WkfjGkP2668QIQiewQViYFDIS2zBWMULcDThWas=";
   };
 
-  propagatedBuildInputs = [ marshmallow setuptools ];
+  propagatedBuildInputs = [
+    marshmallow
+    setuptools
+  ];
+
+  checkInputs = [
+    pytestCheckHook
+  ];
 
-  pythonImportsCheck = [ "marshmallow_oneofschema" ];
+  pythonImportsCheck = [
+    "marshmallow_oneofschema"
+  ];
 
   meta = with lib; {
-    homepage = "https://github.com/marshmallow-code/marshmallow-oneofschema";
     description = "Marshmallow library extension that allows schema (de)multiplexing";
+    homepage = "https://github.com/marshmallow-code/marshmallow-oneofschema";
     license = licenses.mit;
-    maintainers = [ maintainers.ivan-tkatchev ];
+    maintainers = with maintainers; [ ivan-tkatchev ];
   };
 }
diff --git a/pkgs/development/python-modules/marshmallow/default.nix b/pkgs/development/python-modules/marshmallow/default.nix
index a4f60d8202a..50e7e71cc9e 100644
--- a/pkgs/development/python-modules/marshmallow/default.nix
+++ b/pkgs/development/python-modules/marshmallow/default.nix
@@ -1,15 +1,17 @@
 { lib
 , buildPythonPackage
-, pythonOlder
 , fetchFromGitHub
 , pytestCheckHook
+, pythonOlder
 , pytz
 , simplejson
+, packaging
 }:
 
 buildPythonPackage rec {
   pname = "marshmallow";
-  version = "3.13.0";
+  version = "3.15.0";
+  format = "setuptools";
 
   disabled = pythonOlder "3.6";
 
@@ -17,9 +19,13 @@ buildPythonPackage rec {
     owner = "marshmallow-code";
     repo = pname;
     rev = version;
-    sha256 = "sha256-tP/RKo2Hzxz2bT7ybRs9wGzq7TpsmzmOPi3BGuSLDA0=";
+    hash = "sha256-ZqMrMNfP/RKW2jQDNPgfhyeqmSc40pZbnrcXHbw2emc=";
   };
 
+  propagatedBuildInputs = [
+    packaging
+  ];
+
   checkInputs = [
     pytestCheckHook
     pytz
@@ -31,10 +37,7 @@ buildPythonPackage rec {
   ];
 
   meta = with lib; {
-    description = ''
-      A lightweight library for converting complex objects to and from
-      simple Python datatypes.
-    '';
+    description = "Library for converting complex objects to and from simple Python datatypes";
     homepage = "https://github.com/marshmallow-code/marshmallow";
     license = licenses.mit;
     maintainers = with maintainers; [ cript0nauta ];