diff --git a/pkgs/development/python-modules/pipdate/default.nix b/pkgs/development/python-modules/pipdate/default.nix
index 627e2b0a6fa..4d241e87e1c 100644
--- a/pkgs/development/python-modules/pipdate/default.nix
+++ b/pkgs/development/python-modules/pipdate/default.nix
@@ -1,9 +1,10 @@
 { lib
+, appdirs
 , buildPythonPackage
 , fetchPypi
-, pythonOlder
-, appdirs
 , importlib-metadata
+, packaging
+, pythonOlder
 , requests
 , rich
 , setuptools
@@ -12,19 +13,22 @@
 
 buildPythonPackage rec {
   pname = "pipdate";
-  version = "0.5.5";
+  version = "0.5.6";
   format = "pyproject";
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "03hr9i691cpg9q2xc1xr4lpd90xs8rba0xjh6qmc1vg7lgcdgbaa";
+    hash = "sha256-G2t+wsVGj7cDbsnWss7XqKU421WqygPzAZkhbTu9Jks=";
   };
 
-  nativeBuildInputs = [ wheel ];
+  nativeBuildInputs = [
+    wheel
+  ];
 
   propagatedBuildInputs = [
     appdirs
+    packaging
     requests
     rich
     setuptools