diff --git a/pkgs/development/python-modules/tzdata/default.nix b/pkgs/development/python-modules/tzdata/default.nix
index b6db24779f12..2ecc577a60cb 100644
--- a/pkgs/development/python-modules/tzdata/default.nix
+++ b/pkgs/development/python-modules/tzdata/default.nix
@@ -8,12 +8,12 @@
 
 buildPythonPackage rec {
   pname = "tzdata";
-  version = "2026.2";
+  version = "2026.3";
   pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-kXP959gNkBjgKmYuFo5aLQT4fEHqF0sTn772Qu2mLRA=";
+    hash = "sha256-ShUYuJkwhqeYJSPgcWQ/PA5fIT51shMY54vKv/+dFBU=";
   };
 
   nativeBuildInputs = [ setuptools ];