diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index e072dc2..98b58dd 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -10,7 +10,7 @@ dev = [
   "pytest==9.1.1",
   "pytest-asyncio==1.4.0",
   "pytest-cov==7.0.0",
-  "typeguard==4.4.4",
+  "typeguard==4.5.2",
   "httpx==0.28.1",  # For testing async HTTP calls
   "pytest-mock==3.15.1",
   # File format and linting tools
diff --git a/backend/uv.lock b/backend/uv.lock
index ad9ccfe..80b7b8a 100644
--- a/backend/uv.lock
+++ b/backend/uv.lock
@@ -611,7 +611,7 @@ dev = [
     { name = "pyyaml", specifier = "==6.0.3" },
     { name = "ruff", specifier = "==0.14.1" },
     { name = "toml-sort", specifier = "==0.24.3" },
-    { name = "typeguard", specifier = "==4.4.4" },
+    { name = "typeguard", specifier = "==4.5.2" },
     { name = "xdoctest", specifier = "==1.3.0" },
     { name = "yamllint", specifier = "==1.37.1" },
 ]
@@ -1058,14 +1058,14 @@ wheels = [
 
 [[package]]
 name = "typeguard"
-version = "4.4.4"
+version = "4.5.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "typing-extensions" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/c7/68/71c1a15b5f65f40e91b65da23b8224dad41349894535a97f63a52e462196/typeguard-4.4.4.tar.gz", hash = "sha256:3a7fd2dffb705d4d0efaed4306a704c89b9dee850b688f060a8b1615a79e5f74", size = 75203, upload-time = "2025-06-18T09:56:07.624Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/67/1c/dfba5c4633cafc4c701f237d2ba63b416805047fd6d96aab4cfc40969f98/typeguard-4.5.2.tar.gz", hash = "sha256:5a16dcac23502039299c97c8941651bc33d7ea8cc4b2f7d6bbb1b528f6eea423", size = 80240, upload-time = "2026-05-14T12:59:40.857Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/1b/a9/e3aee762739c1d7528da1c3e06d518503f8b6c439c35549b53735ba52ead/typeguard-4.4.4-py3-none-any.whl", hash = "sha256:b5f562281b6bfa1f5492470464730ef001646128b180769880468bd84b68b09e", size = 34874, upload-time = "2025-06-18T09:56:05.999Z" },
+    { url = "https://files.pythonhosted.org/packages/5b/29/74eeb4d3f3ae61ca096b018ad486b3b3c74b17bec09ab4edab721cbefec3/typeguard-4.5.2-py3-none-any.whl", hash = "sha256:fcf9de18bd945cdb4c7b996e12b4c51ce83f92f191314a6d7cf1739586ec98cf", size = 36748, upload-time = "2026-05-14T12:59:39.473Z" },
 ]
 
 [[package]]