diff --git a/install/requirements.txt b/install/requirements.txt
index 52b1b7ce8..a34106a04 100644
--- a/install/requirements.txt
+++ b/install/requirements.txt
@@ -290,9 +290,9 @@ mdurl==0.1.2 \
     --hash=sha256:84008a41e51615a49fc9966191ff91509e3c40b939176e643fd50a5c2196b8f8 \
     --hash=sha256:bb413d29f5eea38f31dd4754dd7377d4465116fb207585f97bf925588687c1ba
     # via markdown-it-py
-platformdirs==4.11.2 \
-    --hash=sha256:3a2ae5fca3520a01ab1be8b45613537f52ddf5b5f6f53d88233892dfbf0cd82d \
-    --hash=sha256:7f89089b6ea71bda7962953edcf784b2e2d9d285b40ad88be2bb75c6e9d82ab4
+platformdirs==4.11.3 \
+    --hash=sha256:5ed065d443751de711da036041a7a214122efc4a4de393b3f4137ba5576540e7 \
+    --hash=sha256:66a73d38a849810252df809a3d8bcbda8e26f6c189920e7535ad608a48dbb5ab
     # via sigstore
 pyasn1==0.6.4 \
     --hash=sha256:9c447d8431c947fe4c8febc4ed9e760bc29011a5b01e5c74b67025bd9fb8ce81 \
diff --git a/uv.lock b/uv.lock
index 5ca48c51f..aa9ef936e 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1248,11 +1248,11 @@ wheels = [
 
 [[package]]
 name = "platformdirs"
-version = "4.11.2"
+version = "4.11.3"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/e5/98/0bf930c4f97d0266b58a89e36c015f56232c52b5d2f207215d48cca9e8f7/platformdirs-4.11.2.tar.gz", hash = "sha256:3a2ae5fca3520a01ab1be8b45613537f52ddf5b5f6f53d88233892dfbf0cd82d", size = 32716, upload-time = "2026-08-10T15:48:06.092Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/b8/d7/e7bfbc86e9f99ff7807e24de7703f032e9c9ba80bb355cf26e0e9bc5a75e/platformdirs-4.11.3.tar.gz", hash = "sha256:66a73d38a849810252df809a3d8bcbda8e26f6c189920e7535ad608a48dbb5ab", size = 33050, upload-time = "2026-08-13T22:43:27.52Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/49/e2/4e6eee633809c376c024821b91ade709cbfd040ec53939ffbcc292aa7eee/platformdirs-4.11.2-py3-none-any.whl", hash = "sha256:7f89089b6ea71bda7962953edcf784b2e2d9d285b40ad88be2bb75c6e9d82ab4", size = 23361, upload-time = "2026-08-10T15:48:04.855Z" },
+    { url = "https://files.pythonhosted.org/packages/19/a9/c34aebedd3a4c9afe5101b1b8713710b3fec18087c8a36c35d2f909861bd/platformdirs-4.11.3-py3-none-any.whl", hash = "sha256:5ed065d443751de711da036041a7a214122efc4a4de393b3f4137ba5576540e7", size = 23491, upload-time = "2026-08-13T22:43:26.121Z" },
 ]
 
 [[package]]