diff --git a/backend/pyproject.toml b/backend/pyproject.toml
index f6d5eae..f28fc47 100644
--- a/backend/pyproject.toml
+++ b/backend/pyproject.toml
@@ -9,7 +9,7 @@ dependencies = [
     "pydantic-settings>=2.14.2",
     "neo4j>=5.19.0",
     "python-multipart>=0.0.31",
-    "pypdf>=6.13.3",
+    "pypdf>=6.16.1",
     "httpx>=0.28.0",
     "sse-starlette>=2.2.0",
     "aiofiles>=24.0.0",
diff --git a/backend/uv.lock b/backend/uv.lock
index 511e6cc..667e1f5 100644
--- a/backend/uv.lock
+++ b/backend/uv.lock
@@ -634,7 +634,7 @@ requires-dist = [
     { name = "neo4j", specifier = ">=5.19.0" },
     { name = "pydantic", specifier = ">=2.10.0" },
     { name = "pydantic-settings", specifier = ">=2.14.2" },
-    { name = "pypdf", specifier = ">=6.13.3" },
+    { name = "pypdf", specifier = ">=6.16.1" },
     { name = "pytest", marker = "extra == 'dev'", specifier = ">=8.0.0" },
     { name = "pytest-asyncio", marker = "extra == 'dev'", specifier = ">=0.24.0" },
     { name = "pytest-cov", marker = "extra == 'dev'", specifier = ">=6.0.0" },
@@ -1237,11 +1237,11 @@ wheels = [
 
 [[package]]
 name = "pypdf"
-version = "6.13.3"
+version = "6.16.1"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/17/18/9947cc201af9ccf76720fd3347bf4f70eb882ce3fcf4cb05f7443e4cf871/pypdf-6.13.3.tar.gz", hash = "sha256:f3cb822769725f1bac658c406cfc9460399043f3750c2d3e4650e0a85eacabd7", size = 6484063, upload-time = "2026-06-17T15:22:00.898Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/b6/5a/df92d1c1ef8806ca28f20f978ee059894868d93de797a7e2edebe7fe1a43/pypdf-6.16.1.tar.gz", hash = "sha256:c4d1b43ddae921387321cf63936cd16a7743b91d2da92f165c149a195c972ba9", size = 7003737, upload-time = "2026-08-14T12:24:04.531Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/94/56/2967e621598987905fb8cdfadd8f8de6b5c68c9351f0523c4df8409f28f1/pypdf-6.13.3-py3-none-any.whl", hash = "sha256:c6e3f86afb625791510b02ad5480e94b63970bb957df75d44657c282ecc52224", size = 347288, upload-time = "2026-06-17T15:21:59.512Z" },
+    { url = "https://files.pythonhosted.org/packages/33/a1/724b18d6757ab7253a8fecd3a430eb8d980ed26872ba16651e7b5ddfc63f/pypdf-6.16.1-py3-none-any.whl", hash = "sha256:63fec31c4092ae50b6729beedcb469055b60d20c834bde1c402df241f371f644", size = 382924, upload-time = "2026-08-14T12:24:02.854Z" },
 ]
 
 [[package]]