diff --git a/pyproject.toml b/pyproject.toml
index 81b258b..81ced9e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,7 @@ build-backend = "hatchling.build"
 
 [dependency-groups]
 dev = [
-    "faker==37.11.0",
+    "faker==40.1.2",
     "pyright==1.1.408",
     "pytest==8.4.2",
     "ruff==0.11.2",
diff --git a/uv.lock b/uv.lock
index f04086e..06874a5 100644
--- a/uv.lock
+++ b/uv.lock
@@ -34,14 +34,14 @@ wheels = [
 
 [[package]]
 name = "faker"
-version = "37.11.0"
+version = "40.1.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "tzdata" },
+    { name = "tzdata", marker = "sys_platform == 'win32'" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/c9/4b/ca43f6bbcef63deb8ac01201af306388670a172587169aab3b192f7490f0/faker-37.11.0.tar.gz", hash = "sha256:22969803849ba0618be8eee2dd01d0d9e2cd3b75e6ff1a291fa9abcdb34da5e6", size = 1935301, upload-time = "2025-10-07T14:49:01.481Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/5e/77/1c3ff07b6739b9a1d23ca01ec0a90a309a33b78e345a3eb52f9ce9240e36/faker-40.1.2.tar.gz", hash = "sha256:b76a68163aa5f171d260fc24827a8349bc1db672f6a665359e8d0095e8135d30", size = 1949802, upload-time = "2026-01-13T20:51:49.917Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/a3/46/8f4097b55e43af39e8e71e1f7aec59ff7398bca54d975c30889bc844719d/faker-37.11.0-py3-none-any.whl", hash = "sha256:1508d2da94dfd1e0087b36f386126d84f8583b3de19ac18e392a2831a6676c57", size = 1975525, upload-time = "2025-10-07T14:48:58.29Z" },
+    { url = "https://files.pythonhosted.org/packages/46/ec/91a434c8a53d40c3598966621dea9c50512bec6ce8e76fa1751015e74cef/faker-40.1.2-py3-none-any.whl", hash = "sha256:93503165c165d330260e4379fd6dc07c94da90c611ed3191a0174d2ab9966a42", size = 1985633, upload-time = "2026-01-13T20:51:47.982Z" },
 ]
 
 [[package]]
@@ -390,7 +390,7 @@ requires-dist = [
 
 [package.metadata.requires-dev]
 dev = [
-    { name = "faker", specifier = "==37.11.0" },
+    { name = "faker", specifier = "==40.1.2" },
     { name = "pyright", specifier = "==1.1.408" },
     { name = "pytest", specifier = "==8.4.2" },
     { name = "ruff", specifier = "==0.11.2" },