diff --git a/pkgs/development/python-modules/mail-parser/default.nix b/pkgs/development/python-modules/mail-parser/default.nix
index 226fe1878de2..807c97f6adde 100644
--- a/pkgs/development/python-modules/mail-parser/default.nix
+++ b/pkgs/development/python-modules/mail-parser/default.nix
@@ -12,14 +12,14 @@
 
 buildPythonPackage rec {
   pname = "mail-parser";
-  version = "4.0.0";
+  version = "4.1.2";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "SpamScope";
     repo = "mail-parser";
     rev = "refs/tags/${version}";
-    hash = "sha256-WpV1WJFwzAquPXimew86YpEp++dnkIiBe5E4lMBDl7w=";
+    hash = "sha256-AXMfb+9POEaosCc+dv1xenhvBbpVkllMjftMoADUPXE=";
   };
 
   LC_ALL = "en_US.utf-8";
@@ -49,11 +49,11 @@ buildPythonPackage rec {
     cat tests/mails/mail_malformed_3 | ${python.interpreter} -m mailparser -k -j
   '';
 
-  meta = with lib; {
+  meta = {
     description = "Mail parser for python 2 and 3";
     mainProgram = "mailparser";
     homepage = "https://github.com/SpamScope/mail-parser";
-    license = licenses.asl20;
-    maintainers = with maintainers; [ psyanticy ];
+    license = lib.licenses.asl20;
+    maintainers = with lib.maintainers; [ psyanticy ];
   };
 }
diff --git a/pkgs/development/python-modules/mailsuite/default.nix b/pkgs/development/python-modules/mailsuite/default.nix
index f6cb1a2a2330..a58dfba8dbea 100644
--- a/pkgs/development/python-modules/mailsuite/default.nix
+++ b/pkgs/development/python-modules/mailsuite/default.nix
@@ -16,18 +16,22 @@
 
 buildPythonPackage rec {
   pname = "mailsuite";
-  version = "1.9.16";
+  version = "1.9.18";
   format = "pyproject";
 
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-rfavOOivttXXmdA/Nl3jUmXIUQrjxDDZ8cHcNIJQL6U=";
+    hash = "sha256-3rK5PgcAOKVvZbFT7PaZX9lhU8yKpPQozvh2F8mTkfA=";
   };
 
   nativeBuildInputs = [ hatchling ];
 
+  pythonRelaxDeps = [
+    "mail-parser"
+  ];
+
   propagatedBuildInputs = [
     dnspython
     expiringdict
diff --git a/pkgs/development/python-modules/opensearch-py/default.nix b/pkgs/development/python-modules/opensearch-py/default.nix
index 0914a8ca6701..5557ea3e21b1 100644
--- a/pkgs/development/python-modules/opensearch-py/default.nix
+++ b/pkgs/development/python-modules/opensearch-py/default.nix
@@ -1,5 +1,6 @@
 {
   lib,
+  stdenv,
   buildPythonPackage,
   fetchFromGitHub,
 
@@ -62,6 +63,8 @@ buildPythonPackage rec {
     pytz
   ] ++ optional-dependencies.async;
 
+  __darwinAllowLocalNetworking = true;
+
   disabledTestPaths = [
     # require network
     "test_opensearchpy/test_async/test_connection.py"
@@ -70,11 +73,21 @@ buildPythonPackage rec {
     "test_opensearchpy/test_server_secured"
   ];
 
-  disabledTests = [
-    # finds our ca-bundle, but expects something else (/path/to/clientcert/dir or None)
-    "test_ca_certs_ssl_cert_dir"
-    "test_no_ca_certs"
-  ];
+  disabledTests =
+    [
+      # finds our ca-bundle, but expects something else (/path/to/clientcert/dir or None)
+      "test_ca_certs_ssl_cert_dir"
+      "test_no_ca_certs"
+
+      # Failing tests, issue opened at https://github.com/opensearch-project/opensearch-py/issues/849
+      "test_basicauth_in_request_session"
+      "test_callable_in_request_session"
+    ]
+    ++ lib.optionals (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86) [
+      # Flaky tests: OSError: [Errno 48] Address already in use
+      "test_redirect_failure_when_allow_redirect_false"
+      "test_redirect_success_when_allow_redirect_true"
+    ];
 
   meta = {
     description = "Python low-level client for OpenSearch";
diff --git a/pkgs/development/python-modules/parsedmarc/default.nix b/pkgs/development/python-modules/parsedmarc/default.nix
index 61ec964340d4..dc118008ef9b 100644
--- a/pkgs/development/python-modules/parsedmarc/default.nix
+++ b/pkgs/development/python-modules/parsedmarc/default.nix
@@ -27,6 +27,7 @@
   nixosTests,
   opensearch-py,
   publicsuffixlist,
+  pygelf,
   pythonOlder,
   requests,
   tqdm,
@@ -41,14 +42,14 @@ let
 in
 buildPythonPackage rec {
   pname = "parsedmarc";
-  version = "8.15.0";
+  version = "8.15.4";
   pyproject = true;
 
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-Z2KF8jv/D/SvwQWd1PGSlsAfowmYOd5CvvcC4kVuLos=";
+    hash = "sha256-lxW92jlSWgGVxOO+CwIZi5sKHqoZuR5VQCnDVORXmXU=";
   };
 
   nativeBuildInputs = [
@@ -82,6 +83,7 @@ buildPythonPackage rec {
     mailsuite
     msgraph-core
     publicsuffixlist
+    pygelf
     requests
     tqdm
     xmltodict
diff --git a/pkgs/development/python-modules/pygelf/default.nix b/pkgs/development/python-modules/pygelf/default.nix
new file mode 100644
index 000000000000..bb5735771c74
--- /dev/null
+++ b/pkgs/development/python-modules/pygelf/default.nix
@@ -0,0 +1,50 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchPypi,
+  setuptools,
+  mock,
+  pytestCheckHook,
+  requests,
+}:
+buildPythonPackage rec {
+  pname = "pygelf";
+  version = "0.4.2";
+  pyproject = true;
+
+  src = fetchPypi {
+    pname = "pygelf";
+    inherit version;
+    hash = "sha256-0LuPRf9kipoYdxP0oFwJ9oX8uK3XsEu3Rx8gBxvRGq0=";
+  };
+
+  build-system = [ setuptools ];
+
+  pythonImportsCheck = [ "pygelf" ];
+
+  nativeCheckInputs = [
+    mock
+    pytestCheckHook
+    requests
+  ];
+
+  disabledTests = [
+    # ConnectionRefusedError: [Errno 111] Connection refused
+    "test_static_fields"
+    "test_dynamic_fields"
+  ];
+
+  disabledTestPaths = [
+    # These tests requires files that are stripped off by Pypi packaging
+    "tests/test_queuehandler_support.py"
+    "tests/test_debug_mode.py"
+    "tests/test_common_fields.py"
+  ];
+
+  meta = {
+    description = "Python logging handlers with GELF (Graylog Extended Log Format) support";
+    homepage = "https://github.com/keeprocking/pygelf";
+    license = lib.licenses.bsd3;
+    maintainers = with lib.maintainers; [ drupol ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 61e7d05fb154..ef8f266c85bf 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -10405,6 +10405,8 @@ self: super: with self; {
 
   pyfreedompro = callPackage ../development/python-modules/pyfreedompro { };
 
+  pygelf = callPackage ../development/python-modules/pygelf { };
+
   pygments-style-github = callPackage ../development/python-modules/pygments-style-github { };
 
   pygnmi = callPackage ../development/python-modules/pygnmi { };