diff --git a/mcp/slack_tool/pyproject.toml b/mcp/slack_tool/pyproject.toml
index 5e7d6f59..50194ddb 100644
--- a/mcp/slack_tool/pyproject.toml
+++ b/mcp/slack_tool/pyproject.toml
@@ -10,7 +10,7 @@ dependencies = [
     "authlib>=1.7.2",   # Indirect; prevents CVE-2026-27962
     "urllib3>=2.7.0",   # Indirect; prevents CVE-2025-66418
     "python-multipart>=0.0.32", # Indirect; prevents CVE-2026-24486
-    "fastmcp>=3.4.4",           # Indirect; prevents CVE-2026-32871
-    "starlette>=1.3.1",        # Indirect; prevents CVE-2025-62727
+    "fastmcp>=3.4.7",           # Indirect; prevents CVE-2026-32871
+    "starlette>=1.6.0",        # Indirect; prevents CVE-2025-62727
     "cryptography>=49.0.0,<50", # Indirect; prevents CVE-2026-26007
 ]
diff --git a/mcp/slack_tool/uv.lock b/mcp/slack_tool/uv.lock
index c98c92da..48f39ac0 100644
--- a/mcp/slack_tool/uv.lock
+++ b/mcp/slack_tool/uv.lock
@@ -417,19 +417,19 @@ wheels = [
 
 [[package]]
 name = "fastmcp"
-version = "3.4.4"
+version = "3.4.7"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "fastmcp-slim", extra = ["client", "server"] },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/9c/f7/5188565d1b93ad611cbd80bf473e7ad669d1f3b689c4bedcd304e1ec3472/fastmcp-3.4.4.tar.gz", hash = "sha256:378202e26ec15b23819d9a1c0d1b0ebda096bc712720532010a0b82a45c2b1df", size = 28796458, upload-time = "2026-07-09T00:32:41.352Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/62/dd/fd444d94ae7afdaf5b6dd168799d34023f576b405872d6a27d5686a9d1f4/fastmcp-3.4.7.tar.gz", hash = "sha256:43117aca886f5ee2f6a569bba91cef02b59c339aad04ba29950ff18d251c822a", size = 28808982, upload-time = "2026-08-10T21:17:55.045Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/5f/67/3cef84ba38a23dca1e1e776bfda8a35ab3c7a6c94a8ca81d0715de6dd3c5/fastmcp-3.4.4-py3-none-any.whl", hash = "sha256:f86f208713212260068cf55c32936839eee856fefc7808e18a032f31eb0f718e", size = 8019, upload-time = "2026-07-09T00:32:39.411Z" },
+    { url = "https://files.pythonhosted.org/packages/ac/14/6d950459cc831fa17fe2d1797926b6eb2d2f2af50f830e62d0c098cc1ec8/fastmcp-3.4.7-py3-none-any.whl", hash = "sha256:e4e7698cb4af5bc667b1901685261fa2f3526dc73d243a461fca42500c8dbe56", size = 8016, upload-time = "2026-08-10T21:17:51.391Z" },
 ]
 
 [[package]]
 name = "fastmcp-slim"
-version = "3.4.4"
+version = "3.4.7"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "platformdirs" },
@@ -439,9 +439,9 @@ dependencies = [
     { name = "rich" },
     { name = "typing-extensions" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/45/79/f35661c6a1d76dfbe17a079f912d96fffcfdd40fad5a9144bb9e7dfb1fdf/fastmcp_slim-3.4.4.tar.gz", hash = "sha256:dcaa3e0be2127d7eacdce592c2ef0039204923dc0ec396454615cb4a3275b078", size = 590203, upload-time = "2026-07-09T00:32:20.531Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/12/ac/7924e803368d0758ee4d6b1259066550df78f58f0f9f8bfebd5a123e957d/fastmcp_slim-3.4.7.tar.gz", hash = "sha256:06b32a358320a7dc2b2ee040ba89ea55ddc20763dff2949f384f7974b13b5d8f", size = 594357, upload-time = "2026-08-10T21:17:28.723Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/16/91/321e0b2e9ed70d0628b17ddaec76fc7b09f3e1d5d290f70bf101a2890142/fastmcp_slim-3.4.4-py3-none-any.whl", hash = "sha256:9d3a6327b9ee835188eb7323fc3b5d4cd061631b48da8ece56794bb538972505", size = 765158, upload-time = "2026-07-09T00:32:19.11Z" },
+    { url = "https://files.pythonhosted.org/packages/b4/97/e0e53642cd029a9a7635ae9c548f9f2cc995af5914e487b3df795664e4be/fastmcp_slim-3.4.7-py3-none-any.whl", hash = "sha256:6c931a0089705f3f2935428ef9b2bc74ad94140adc64aab84d116d103e694b3a", size = 769370, upload-time = "2026-08-10T21:17:27.227Z" },
 ]
 
 [package.optional-dependencies]
@@ -497,11 +497,11 @@ dependencies = [
 requires-dist = [
     { name = "authlib", specifier = ">=1.7.2" },
     { name = "cryptography", specifier = ">=49.0.0,<50" },
-    { name = "fastmcp", specifier = ">=3.4.4" },
+    { name = "fastmcp", specifier = ">=3.4.7" },
     { name = "python-multipart", specifier = ">=0.0.32" },
     { name = "requests", specifier = ">=2.34.2" },
     { name = "slack-sdk", specifier = ">=3.43.0" },
-    { name = "starlette", specifier = ">=1.3.1" },
+    { name = "starlette", specifier = ">=1.6.0" },
     { name = "urllib3", specifier = ">=2.7.0" },
 ]
 
@@ -1345,15 +1345,15 @@ wheels = [
 
 [[package]]
 name = "starlette"
-version = "1.3.1"
+version = "1.6.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "anyio" },
     { name = "typing-extensions", marker = "python_full_version < '3.13'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/eb/e3/7c1dc7381d9f8ab7d854328ebfa884e62cb3f3d8549ddfd37c7814f42afa/starlette-1.3.1.tar.gz", hash = "sha256:05d0213193f2fbaae60e2ecb593b4add4262ad4e46536b54abe36f11a71724e0", size = 2703240, upload-time = "2026-06-12T09:23:11.602Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/b5/b4/205b0d5241d934e8add0c38aa924c4f9fb7330834ff11e5444db964ec3f9/starlette-1.6.0.tar.gz", hash = "sha256:d4e3ac5e546444960c710297a3c9fc3f7ebae1b7e963f3d36173b49da535be9b", size = 2716969, upload-time = "2026-08-08T18:27:57.512Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/ec/bb/2799cc2ede3ed41131f8975621e7213dfc7ef4acbbaadfa440f32500c370/starlette-1.3.1-py3-none-any.whl", hash = "sha256:c7372aae11c3c3f26a42df7bd626cec2f47d03483d261d369516a615a53714c6", size = 73632, upload-time = "2026-06-12T09:23:10.017Z" },
+    { url = "https://files.pythonhosted.org/packages/c8/cb/6a6a47d5b464bd08695d254f3da6e7986cc70c9fa5d778eda57538edfe56/starlette-1.6.0-py3-none-any.whl", hash = "sha256:a86dd39d14bb45f85a3d18525215a9ef0cfd1f192ac793220e72598c90335f0c", size = 75969, upload-time = "2026-08-08T18:27:56.196Z" },
 ]
 
 [[package]]