diff --git a/pkgs/development/python-modules/events/default.nix b/pkgs/development/python-modules/events/default.nix
index 6fe355d9c4d8..f4e9dcd250f0 100644
--- a/pkgs/development/python-modules/events/default.nix
+++ b/pkgs/development/python-modules/events/default.nix
@@ -1,17 +1,41 @@
-{ lib, buildPythonPackage, fetchPypi }:
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytestCheckHook
+, pythonOlder
+}:
 
 buildPythonPackage rec {
-  pname = "Events";
-  version = "0.4";
+  pname = "events";
+  version = "0.5";
+  format = "setuptools";
 
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "01d9dd2a061f908d74a89fa5c8f07baa694f02a2a5974983663faaf7a97180f5";
+  disabled = pythonOlder "3.7";
+
+  src = fetchFromGitHub {
+    owner = "pyeve";
+    repo = "events";
+    rev = "refs/tags/v${version}";
+    hash = "sha256-GGhIKHbJ31IN0Uoe689X9V/MZvtseE47qx2CmM4MYUs=";
   };
 
+  nativeCheckInputs = [
+    pytestCheckHook
+  ];
+
+  pythonImportsCheck = [
+    "events"
+  ];
+
+  pytestFlagsArray = [
+    "events/tests/tests.py"
+  ];
+
   meta = with lib; {
-    homepage = "https://events.readthedocs.org";
     description = "Bringing the elegance of C# EventHanlder to Python";
+    homepage = "https://events.readthedocs.org";
+    changelog = "https://github.com/pyeve/events/blob/v0.5/CHANGES";
     license = licenses.bsd3;
+    maintainers = with maintainers; [ ];
   };
 }
diff --git a/pkgs/development/python-modules/pysnooz/default.nix b/pkgs/development/python-modules/pysnooz/default.nix
index 24868e7a6b62..8d4adbb86d13 100644
--- a/pkgs/development/python-modules/pysnooz/default.nix
+++ b/pkgs/development/python-modules/pysnooz/default.nix
@@ -25,13 +25,14 @@ buildPythonPackage rec {
   src = fetchFromGitHub {
     owner = "AustinBrunkhorst";
     repo = pname;
-    rev = "v${version}";
+    rev = "refs/tags/v${version}";
     hash = "sha256-X7RjI4KytJI9raHAJHLygV3J4zHKuHk8Kq+3JfktPeg=";
   };
 
   postPatch = ''
     substituteInPlace pyproject.toml \
-      --replace 'transitions = "^0.8.11"' 'transitions = ">0.8.11"' \
+      --replace 'transitions = "^0.8.11"' 'transitions = ">=0.8.11"' \
+      --replace 'Events = "^0.4"' 'Events = ">=0.4"' \
       --replace " --cov=pysnooz --cov-report=term-missing:skip-covered" ""
   '';
 
@@ -62,6 +63,7 @@ buildPythonPackage rec {
   meta = with lib; {
     description = "Library to control SNOOZ white noise machines";
     homepage = "https://github.com/AustinBrunkhorst/pysnooz";
+    changelog = "https://github.com/AustinBrunkhorst/pysnooz/blob/v${version}/CHANGELOG.md";
     license = with licenses; [ mit ];
     maintainers = with maintainers; [ fab ];
   };