diff --git a/poetry.lock b/poetry.lock
index f5546a5..c380900 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 2.1.3 and should not be changed by hand.
+# This file is automatically @generated by Poetry 2.2.1 and should not be changed by hand.
 
 [[package]]
 name = "aenum"
@@ -676,14 +676,14 @@ all = ["flake8 (>=7.1.1)", "mypy (>=1.11.2)", "pytest (>=8.3.2)", "ruff (>=0.6.2
 
 [[package]]
 name = "line-bot-sdk"
-version = "3.17.1"
+version = "3.21.0"
 description = "LINE Messaging API SDK for Python"
 optional = false
 python-versions = ">=3.9.0"
 groups = ["main"]
 files = [
-    {file = "line_bot_sdk-3.17.1-py2.py3-none-any.whl", hash = "sha256:74ac0aa0a1f67ad51661f95843b5a090dad0cb178d14ae28b7fa81af35315ab7"},
-    {file = "line_bot_sdk-3.17.1.tar.gz", hash = "sha256:b4b1300fa0661dac4c98e3df9467f249b16c7f767f226614c099a48346e135ae"},
+    {file = "line_bot_sdk-3.21.0-py2.py3-none-any.whl", hash = "sha256:c2dd2f326872c3f9e955fa7b63c05d1755fd2dec60d4e6c65a74c81d52375288"},
+    {file = "line_bot_sdk-3.21.0.tar.gz", hash = "sha256:09af333377a240142414f3bd1ed9905c3b24f639c049ccfdfab8da19173250bf"},
 ]
 
 [package.dependencies]