diff --git a/poetry.lock b/poetry.lock
index 55e84e58..3fd8978a 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -3610,14 +3610,14 @@ slack_sdk = ">=3.38.0,<4"
 
 [[package]]
 name = "slack-sdk"
-version = "3.39.0"
+version = "3.40.0"
 description = "The Slack API Platform SDK for Python"
 optional = false
 python-versions = ">=3.7"
 groups = ["notifys3uploadfunction", "slackbotfunction"]
 files = [
-    {file = "slack_sdk-3.39.0-py2.py3-none-any.whl", hash = "sha256:b1556b2f5b8b12b94e5ea3f56c4f2c7f04462e4e1013d325c5764ff118044fa8"},
-    {file = "slack_sdk-3.39.0.tar.gz", hash = "sha256:6a56be10dc155c436ff658c6b776e1c082e29eae6a771fccf8b0a235822bbcb1"},
+    {file = "slack_sdk-3.40.0-py2.py3-none-any.whl", hash = "sha256:f2bada5ed3adb10a01e154e90db01d6d8938d0461b5790c12bcb807b2d28bbe2"},
+    {file = "slack_sdk-3.40.0.tar.gz", hash = "sha256:87b9a79d1d6e19a2b1877727a0ec6f016d82d30a6a410389fba87c221c99f10e"},
 ]
 
 [package.extras]
@@ -3939,4 +3939,4 @@ requests = "*"
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.14"
-content-hash = "3a5586e3ab1b168c816038aa0456ebdb1b33e0e0a8f91e285274f973beb9e7eb"
+content-hash = "ec99b2fa29db9d701979e3b33c75358e1cb89a9bd2ccf3b4cdef268c410c4719"
diff --git a/pyproject.toml b/pyproject.toml
index 8b8688d0..dc2d7e3a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,7 @@ moto = {extras = ["ssm"], version = "^5.1.20"}
 
 [tool.poetry.group.slackBotFunction.dependencies]
 slack-bolt = "^1.25.0"
-slack-sdk = "^3.39.0"
+slack-sdk = "^3.40.0"
 boto3 = "^1.42.48"
 requests = "^2.32.5"
 urllib3 = "^2.6.3"
@@ -63,7 +63,7 @@ markitdown = {extras = ["pdf", "docx", "xlsx"], version = "^0.0.1a12"}
 aws-lambda-powertools = "^3.23.0"
 urllib3 = "^2.6.3"
 slack-bolt = "^1.25.0"
-slack-sdk = "^3.39.0"
+slack-sdk = "^3.40.0"
 
 
 [tool.black]