diff --git a/pkgs/development/python-modules/docling-ibm-models/default.nix b/pkgs/development/python-modules/docling-ibm-models/default.nix
index 16b6122db933..166ae7e7c5bc 100644
--- a/pkgs/development/python-modules/docling-ibm-models/default.nix
+++ b/pkgs/development/python-modules/docling-ibm-models/default.nix
@@ -1,6 +1,5 @@
 {
   lib,
-  stdenv,
   buildPythonPackage,
   fetchFromGitHub,
 
@@ -15,6 +14,7 @@
   opencv-python-headless,
   pillow,
   pydantic,
+  rtree,
   safetensors,
   torch,
   torchvision,
@@ -29,14 +29,14 @@
 
 buildPythonPackage rec {
   pname = "docling-ibm-models";
-  version = "3.4.4";
+  version = "3.8.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "docling-project";
     repo = "docling-ibm-models";
     tag = "v${version}";
-    hash = "sha256-a2y4vXgALPRtLhdH0Tqqht1gpdcfa1Gv4puthKDMk7U=";
+    hash = "sha256-Yogg71CXQTdF5OUbdbma1rQxtLudTLjyOIFe2LS9CpI=";
   };
 
   build-system = [
@@ -51,6 +51,7 @@ buildPythonPackage rec {
     opencv-python-headless
     pillow
     pydantic
+    rtree
     safetensors
     torch
     torchvision