diff --git a/pkgs/development/python-modules/timezonefinder/default.nix b/pkgs/development/python-modules/timezonefinder/default.nix
index 895ebd130ea..e62a87e67b0 100644
--- a/pkgs/development/python-modules/timezonefinder/default.nix
+++ b/pkgs/development/python-modules/timezonefinder/default.nix
@@ -8,13 +8,13 @@
 
 buildPythonPackage rec {
   pname = "timezonefinder";
-  version = "4.4.0";
+  version = "4.4.1";
 
   disabled = isPy27;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "ccb7ee58f5da4b05eae2154eb615eb791487d3cfeaa2a690877737a898580a9e";
+    sha256 = "c84e0f4b501419349e67972d25c535d9b5fd6c100c319747049b67812a4c6b97";
   };
 
   propagatedBuildInputs = [