diff --git a/pkgs/development/python-modules/ics/default.nix b/pkgs/development/python-modules/ics/default.nix
index 011909d6b80..ed87f3678b1 100644
--- a/pkgs/development/python-modules/ics/default.nix
+++ b/pkgs/development/python-modules/ics/default.nix
@@ -1,6 +1,11 @@
-{ lib, buildPythonPackage, fetchFromGitHub, pythonOlder
-, tatsu, arrow
-, pytestCheckHook, pytest-flakes
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pythonOlder
+, tatsu
+, arrow
+, pytestCheckHook
+, pytest-flakes
 }:
 
 buildPythonPackage rec {
@@ -9,21 +14,35 @@ buildPythonPackage rec {
   disabled = pythonOlder "3.6";
 
   src = fetchFromGitHub {
-    owner = "C4ptainCrunch";
-    repo = "ics.py";
+    owner = "ics-py";
+    repo = "ics-py";
     rev = "v${version}";
     sha256 = "0rrdc9rcxc3ys6rml81b8m8qdlisk78a34bdib0wy65hlkmyyykn";
   };
 
-  propagatedBuildInputs = [ tatsu arrow ];
+  propagatedBuildInputs = [
+    arrow
+    tatsu
+  ];
+
+  checkInputs = [
+    pytest-flakes
+    pytestCheckHook
+  ];
 
   postPatch = ''
+    # 0.8 will move to python-dateutil
     substituteInPlace requirements.txt \
       --replace "arrow>=0.11,<0.15" "arrow"
     substituteInPlace setup.cfg --replace "--pep8" ""
   '';
 
-  checkInputs = [ pytestCheckHook pytest-flakes ];
+  disabledTests = [
+    # Failure seems to be related to arrow > 1.0
+    "test_event"
+  ];
+
+  pythonImportsCheck = [ "ics" ];
 
   meta = with lib; {
     description = "Pythonic and easy iCalendar library (RFC 5545)";
@@ -32,9 +51,8 @@ buildPythonPackage rec {
       write ics data in a developer friendly way.
     '';
     homepage = "http://icspy.readthedocs.org/en/stable/";
-    changelog = "https://github.com/C4ptainCrunch/ics.py/releases/tag/v${version}";
+    changelog = "https://github.com/ics-py/ics-py/releases/tag/v${version}";
     license = licenses.asl20;
     maintainers = with maintainers; [ primeos ];
   };
-
 }