diff --git a/poetry.lock b/poetry.lock
index 3ec938f..037bdb4 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.2.1 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.4.1 and should not be changed by hand.
 
 [[package]]
 name = "aiohappyeyeballs"
@@ -1482,14 +1482,14 @@ files = [
 
 [[package]]
 name = "tzdata"
-version = "2025.3"
+version = "2026.2"
 description = "Provider of IANA time zone data"
 optional = false
 python-versions = ">=2"
 groups = ["main"]
 files = [
-    {file = "tzdata-2025.3-py2.py3-none-any.whl", hash = "sha256:06a47e5700f3081aab02b2e513160914ff0694bce9947d6b76ebd6bf57cfc5d1"},
-    {file = "tzdata-2025.3.tar.gz", hash = "sha256:de39c2ca5dc7b0344f2eba86f49d614019d29f060fc4ebc8a417896a620b56a7"},
+    {file = "tzdata-2026.2-py2.py3-none-any.whl", hash = "sha256:bbe9af844f658da81a5f95019480da3a89415801f6cc966806612cc7169bffe7"},
+    {file = "tzdata-2026.2.tar.gz", hash = "sha256:9173fde7d80d9018e02a662e168e5a2d04f87c41ea174b139fbef642eda62d10"},
 ]
 
 [[package]]
@@ -1658,4 +1658,4 @@ sqlite = ["aiosqlite"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.12.8,<3.14"
-content-hash = "83311aac2f13d96e326a4c1cd2b0469f83a53a5b6c4dd913fbc1b96242464282"
+content-hash = "0ce4b8f96d5d254e651a1573f2d3da33ec3e8c16ec01b6230536d53c6b056e61"
diff --git a/pyproject.toml b/pyproject.toml
index 0a47318..29c95c5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,7 +17,7 @@ asyncpg = { version = "^0.31.0", optional = true }
 aiosqlite = { version = "^0.21.0", optional = true }
 pynacl = "^1.5.0"
 tornado = "^6.5"
-tzdata = "^2025.2"
+tzdata = ">=2025.2,<2027.0"
 
 [tool.poetry.extras]
 sqlite = ["aiosqlite"]