diff --git a/backend/uv.lock b/backend/uv.lock
index 642dd9c3..b2f853cc 100644
--- a/backend/uv.lock
+++ b/backend/uv.lock
@@ -1144,17 +1144,18 @@ wheels = [
 
 [[package]]
 name = "nltk"
-version = "3.9.2"
+version = "3.10.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "click" },
+    { name = "defusedxml" },
     { name = "joblib" },
     { name = "regex" },
     { name = "tqdm" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/f9/76/3a5e4312c19a028770f86fd7c058cf9f4ec4321c6cf7526bab998a5b683c/nltk-3.9.2.tar.gz", hash = "sha256:0f409e9b069ca4177c1903c3e843eef90c7e92992fa4931ae607da6de49e1419", size = 2887629, upload-time = "2025-10-01T07:19:23.764Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/96/02/df4f105b28a7c16b0e41423bc09cf0f1b8a305df4ef0b10ca74a2e4c648c/nltk-3.10.0.tar.gz", hash = "sha256:4fbac1d98203cbcd1b5d94a2877fb822300072d80604a5e7fae49d2c5f84e8c1", size = 3089244, upload-time = "2026-07-08T02:39:13.562Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/60/90/81ac364ef94209c100e12579629dc92bf7a709a84af32f8c551b02c07e94/nltk-3.9.2-py3-none-any.whl", hash = "sha256:1e209d2b3009110635ed9709a67a1a3e33a10f799490fa71cf4bec218c11c88a", size = 1513404, upload-time = "2025-10-01T07:19:21.648Z" },
+    { url = "https://files.pythonhosted.org/packages/6e/89/a0b0f35e2820d6a99d75ea1c11977ee6d5c9e6658eceb45b0c7620881faa/nltk-3.10.0-py3-none-any.whl", hash = "sha256:54ff84d4916d3ef127e8953bee0023f6a6b320b75d634a19e06ef056d3d244bf", size = 1716144, upload-time = "2026-07-08T02:39:09.753Z" },
 ]
 
 [[package]]