diff --git a/pyproject.toml b/pyproject.toml
index b67a7d1b..abd0ba37 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ dependencies = [
     "rich~=15.0.0",
     "typer~=0.27.1",
     "pydantic~=2.13.5",
-    "platformdirs~=4.11.5",
+    "platformdirs~=4.12.3",
     "tomlkit~=0.14.0",
     "tomli-w~=1.2.0",
     "termaid[rich]~=0.9.0",
diff --git a/uv.lock b/uv.lock
index 8c9c32a7..a1838a4a 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1,5 +1,5 @@
 version = 1
-revision = 5
+revision = 3
 requires-python = ">=3.13"
 
 [[package]]
@@ -146,7 +146,6 @@ wheels = [
 name = "fndr"
 version = "1.0.1"
 source = { editable = "." }
-default-groups = ["dev", "pdf-structure"]
 dependencies = [
     { name = "lxml" },
     { name = "markdown-it-py" },
@@ -186,7 +185,7 @@ pdf-structure = [
 requires-dist = [
     { name = "lxml", specifier = "~=6.1.2" },
     { name = "markdown-it-py", specifier = "~=4.2.0" },
-    { name = "platformdirs", specifier = "~=4.11.5" },
+    { name = "platformdirs", specifier = "~=4.12.3" },
     { name = "pydantic", specifier = "~=2.13.5" },
     { name = "pymupdf", specifier = "~=1.28.2" },
     { name = "python-docx", specifier = "~=1.2.0" },
@@ -682,11 +681,11 @@ wheels = [
 
 [[package]]
 name = "platformdirs"
-version = "4.11.5"
+version = "4.12.3"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/ea/06/cf1564dcc2e2261c8c8c6c05628dc8b418943bdae2a4e58640ceb2f770fa/platformdirs-4.11.5.tar.gz", hash = "sha256:e8b31f4f8bcbbedef91a6b57a706255e4f148d2a4e01648382a0a47342539173", size = 34823, upload-time = "2026-08-27T21:36:37.46Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/42/23/4a86fc741c38c5b69792a4ef954b281afa69bea9f083f881de1b0d23bc07/platformdirs-4.12.3.tar.gz", hash = "sha256:427fc0bb321ae0c5b037fa03238ca74820437be162e78b4848c4d4055b9b766c", size = 59538, upload-time = "2026-10-03T23:40:46.595Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/c7/12/6f3fcd5067a9cbf4f8664b32957973498da8b083455203c8d9cab83a725c/platformdirs-4.11.5-py3-none-any.whl", hash = "sha256:89f8d42695853b89c7170bd49bc3dc593f98a71e695ede88e06a3b247bc4563b", size = 23900, upload-time = "2026-08-27T21:36:36.227Z" },
+    { url = "https://files.pythonhosted.org/packages/c5/9b/6ce1ead737fe496611bda600c263b9a11ae7bd8f41bb13f9bd7e0a2c37a4/platformdirs-4.12.3-py3-none-any.whl", hash = "sha256:080f3b39423b5abfca9a23d84c4e9795f54d395cd8459867a8ded44084fcd5f8", size = 32493, upload-time = "2026-10-03T23:40:45.104Z" },
 ]
 
 [[package]]