diff --git a/pyproject.toml b/pyproject.toml
index dd9c47de..71c18ba7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ dependencies = [
   "nonebot2>=2.4.4",
   "pydantic-extra-types>=2.11.1",
   "pyjson5>=2.0.0",
-  "tzdata>=2025.3",
+  "tzdata>=2026.2",
 ]
 
 [project.urls]
diff --git a/uv.lock b/uv.lock
index 13bdcbd6..295ee080 100644
--- a/uv.lock
+++ b/uv.lock
@@ -640,7 +640,7 @@ requires-dist = [
     { name = "nonebot2", specifier = ">=2.4.4" },
     { name = "pydantic-extra-types", specifier = ">=2.11.1" },
     { name = "pyjson5", specifier = ">=2.0.0" },
-    { name = "tzdata", specifier = ">=2025.3" },
+    { name = "tzdata", specifier = ">=2026.2" },
 ]
 
 [package.metadata.requires-dev]
@@ -1065,11 +1065,11 @@ wheels = [
 
 [[package]]
 name = "tzdata"
-version = "2025.3"
+version = "2026.2"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/5e/a7/c202b344c5ca7daf398f3b8a477eeb205cf3b6f32e7ec3a6bac0629ca975/tzdata-2025.3.tar.gz", hash = "sha256:de39c2ca5dc7b0344f2eba86f49d614019d29f060fc4ebc8a417896a620b56a7", size = 196772, upload-time = "2025-12-13T17:45:35.667Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/ba/19/1b9b0e29f30c6d35cb345486df41110984ea67ae69dddbc0e8a100999493/tzdata-2026.2.tar.gz", hash = "sha256:9173fde7d80d9018e02a662e168e5a2d04f87c41ea174b139fbef642eda62d10", size = 198254, upload-time = "2026-04-24T15:22:08.651Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/c7/b0/003792df09decd6849a5e39c28b513c06e84436a54440380862b5aeff25d/tzdata-2025.3-py2.py3-none-any.whl", hash = "sha256:06a47e5700f3081aab02b2e513160914ff0694bce9947d6b76ebd6bf57cfc5d1", size = 348521, upload-time = "2025-12-13T17:45:33.889Z" },
+    { url = "https://files.pythonhosted.org/packages/ce/e4/dccd7f47c4b64213ac01ef921a1337ee6e30e8c6466046018326977efd95/tzdata-2026.2-py2.py3-none-any.whl", hash = "sha256:bbe9af844f658da81a5f95019480da3a89415801f6cc966806612cc7169bffe7", size = 349321, upload-time = "2026-04-24T15:22:05.876Z" },
 ]
 
 [[package]]