diff --git a/pkgs/development/python-modules/docling-core/default.nix b/pkgs/development/python-modules/docling-core/default.nix
index e19e098dcbde..48d380bf8c01 100644
--- a/pkgs/development/python-modules/docling-core/default.nix
+++ b/pkgs/development/python-modules/docling-core/default.nix
@@ -8,6 +8,7 @@
   setuptools,
 
   # dependencies
+  defusedxml,
   jsonref,
   jsonschema,
   latex2mathml,
@@ -31,14 +32,14 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "docling-core";
-  version = "2.64.0";
+  version = "2.70.2";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "docling-project";
     repo = "docling-core";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-22UJuHKUKyaIXcFOJvBWZibxBpibENZqVVFmZalWGx0=";
+    hash = "sha256-YRvvizPwc3sJ6FgZfhadixDayMIGS1zTo+bnHBS7FMg=";
   };
 
   build-system = [
@@ -46,7 +47,13 @@ buildPythonPackage (finalAttrs: {
     setuptools
   ];
 
+  pythonRelaxDeps = [
+    "defusedxml"
+    "pillow"
+    "typer"
+  ];
   dependencies = [
+    defusedxml
     jsonref
     jsonschema
     latex2mathml
@@ -62,14 +69,7 @@ buildPythonPackage (finalAttrs: {
     typing-extensions
   ];
 
-  pythonRelaxDeps = [
-    "pillow"
-    "typer"
-  ];
-
-  pythonImportsCheck = [
-    "docling_core"
-  ];
+  pythonImportsCheck = [ "docling_core" ];
 
   nativeCheckInputs = [
     gitpython
@@ -83,6 +83,7 @@ buildPythonPackage (finalAttrs: {
     "test/test_code_chunker.py"
     "test/test_code_chunking_strategy.py"
     "test/test_hybrid_chunker.py"
+    "test/test_line_chunker.py"
   ];
 
   meta = {