diff --git a/mcp/reservation_tool/pyproject.toml b/mcp/reservation_tool/pyproject.toml
index e9399ffb..05237751 100644
--- a/mcp/reservation_tool/pyproject.toml
+++ b/mcp/reservation_tool/pyproject.toml
@@ -9,7 +9,7 @@ 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>=3.4.2",           # Indirect; prevents CVE-2026-32871 (critical), CVE-2026-27124 (high)
+    "fastmcp>=3.4.4",           # Indirect; prevents CVE-2026-32871 (critical), CVE-2026-27124 (high)
     "cryptography>=49.0.0,<50", # Indirect; prevents CVE-2026-26007
     "pyjwt>=2.13.0",            # Indirect; prevents CVE-2026-32597
 ]
diff --git a/mcp/reservation_tool/uv.lock b/mcp/reservation_tool/uv.lock
index 88beca85..af4a205b 100644
--- a/mcp/reservation_tool/uv.lock
+++ b/mcp/reservation_tool/uv.lock
@@ -454,19 +454,19 @@ wheels = [
 
 [[package]]
 name = "fastmcp"
-version = "3.4.2"
+version = "3.4.4"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "fastmcp-slim", extra = ["client", "server"] },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/29/18/46beaec18c9f86a599ae3f9cdf6677dd6b50240cfd844d18233710b47f13/fastmcp-3.4.2.tar.gz", hash = "sha256:b468722946fc467c3796a6572f7a14d93d48c014cf8fea12910245220cbbe4e1", size = 28756849, upload-time = "2026-06-06T01:30:35.694Z" }
+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" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/58/4d/8b1ba42251160e11ca34686344572121432c23a082d56ef6bbdec5888fc1/fastmcp-3.4.2-py3-none-any.whl", hash = "sha256:c87a62b029f0c5400ada85f683629345d2466c39169f0cb853e487b2f7308c08", size = 8018, upload-time = "2026-06-06T01:30:38.118Z" },
+    { 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" },
 ]
 
 [[package]]
 name = "fastmcp-slim"
-version = "3.4.2"
+version = "3.4.4"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "platformdirs" },
@@ -476,9 +476,9 @@ dependencies = [
     { name = "rich" },
     { name = "typing-extensions" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/a3/2e/d627b28b7403ecc526991ef732921b08bde010006e6148635f053fd29f4c/fastmcp_slim-3.4.2.tar.gz", hash = "sha256:290646e0955a516235a317151034559aa48336cb843d3f006131aedad8759bb4", size = 576291, upload-time = "2026-06-06T01:30:12.553Z" }
+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" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/f7/58/22afebf18df7260b09148199cbeb90cdcc4b3a4e1b5d7460e3591c3a7add/fastmcp_slim-3.4.2-py3-none-any.whl", hash = "sha256:bdc72492212681ca502755fa8acc0457f559295da1fc3dfc0599adc1c04b82f3", size = 749195, upload-time = "2026-06-06T01:30:11.22Z" },
+    { 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" },
 ]
 
 [package.optional-dependencies]
@@ -1301,7 +1301,7 @@ dev = [
 requires-dist = [
     { name = "authlib", specifier = ">=1.7.2" },
     { name = "cryptography", specifier = ">=49.0.0,<50" },
-    { name = "fastmcp", specifier = ">=3.4.2" },
+    { name = "fastmcp", specifier = ">=3.4.4" },
     { name = "flake8", marker = "extra == 'dev'", specifier = ">=6.0.0" },
     { name = "pydantic", specifier = ">=2.13.4" },
     { name = "pyjwt", specifier = ">=2.13.0" },