diff --git a/pyproject.toml b/pyproject.toml
index a6f9175..bdacfc1 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ dependencies = [
     "mkdocs==1.6.1",
     "properdocs >=1.6.5,<2",
     "requests>=2.32.5,<3",
-    "tzdata>=2024,<2026 ; sys_platform == 'win32'",
+    "tzdata>=2024,<2027 ; sys_platform == 'win32'",
 ]
 
 [project.optional-dependencies]