diff --git a/poetry.lock b/poetry.lock
index 0d685fe3..51688fe6 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -864,28 +864,30 @@ name = "docling-core"
 version = "2.15.1"
 description = "A python library to define and validate data types in Docling."
 optional = false
-python-versions = "<4.0,>=3.9"
-files = [
-    {file = "docling_core-2.15.1-py3-none-any.whl", hash = "sha256:33152604e1f14d5caccbef099c73163c3f211d0b4d92403d262c308633cc0451"},
-    {file = "docling_core-2.15.1.tar.gz", hash = "sha256:588d941b5bfc393a79e779ab64819c60763e7f182ec5221ee37da4be91dd802f"},
-]
+python-versions = "^3.9"
+files = []
+develop = false
 
 [package.dependencies]
-jsonref = ">=1.1.0,<2.0.0"
-jsonschema = ">=4.16.0,<5.0.0"
-pandas = ">=2.1.4,<3.0.0"
-pillow = ">=10.3.0,<11.0.0"
-pydantic = ">=2.6.0,<2.10.0 || >2.10.0,<2.10.1 || >2.10.1,<2.10.2 || >2.10.2,<3.0.0"
+jsonref = "^1.1.0"
+jsonschema = "^4.16.0"
+pandas = "^2.1.4"
+pillow = "^10.3.0"
+pydantic = ">=2.6.0,<3.0.0,!=2.10.0,!=2.10.1,!=2.10.2"
 pyyaml = ">=5.1,<7.0.0"
-semchunk = {version = ">=2.2.0,<3.0.0", optional = true, markers = "extra == \"chunking\""}
-tabulate = ">=0.9.0,<0.10.0"
-transformers = {version = ">=4.34.0,<5.0.0", optional = true, markers = "extra == \"chunking\""}
-typer = ">=0.12.5,<0.13.0"
-typing-extensions = ">=4.12.2,<5.0.0"
+tabulate = "^0.9.0"
+typer = "^0.12.5"
+typing-extensions = "^4.12.2"
 
 [package.extras]
 chunking = ["semchunk (>=2.2.0,<3.0.0)", "transformers (>=4.34.0,<5.0.0)"]
 
+[package.source]
+type = "git"
+url = "https://github.com/DS4SD/docling-core"
+reference = "dev/add-geometric-operations-in-boundingbox"
+resolved_reference = "22837f9ee86c4d46c2093810e784b5cc5dbf3a14"
+
 [[package]]
 name = "docling-ibm-models"
 version = "3.3.0"
@@ -2804,32 +2806,6 @@ files = [
     {file = "more_itertools-10.6.0-py3-none-any.whl", hash = "sha256:6eb054cb4b6db1473f6e15fcc676a08e4732548acd47c708f0e179c2c7c01e89"},
 ]
 
-[[package]]
-name = "mpire"
-version = "2.10.2"
-description = "A Python package for easy multiprocessing, but faster than multiprocessing"
-optional = false
-python-versions = "*"
-files = [
-    {file = "mpire-2.10.2-py3-none-any.whl", hash = "sha256:d627707f7a8d02aa4c7f7d59de399dec5290945ddf7fbd36cbb1d6ebb37a51fb"},
-    {file = "mpire-2.10.2.tar.gz", hash = "sha256:f66a321e93fadff34585a4bfa05e95bd946cf714b442f51c529038eb45773d97"},
-]
-
-[package.dependencies]
-multiprocess = [
-    {version = "*", optional = true, markers = "python_version < \"3.11\" and extra == \"dill\""},
-    {version = ">=0.70.15", optional = true, markers = "python_version >= \"3.11\" and extra == \"dill\""},
-]
-pygments = ">=2.0"
-pywin32 = {version = ">=301", markers = "platform_system == \"Windows\""}
-tqdm = ">=4.27"
-
-[package.extras]
-dashboard = ["flask"]
-dill = ["multiprocess", "multiprocess (>=0.70.15)"]
-docs = ["docutils (==0.17.1)", "sphinx (==3.2.1)", "sphinx-autodoc-typehints (==1.11.0)", "sphinx-rtd-theme (==0.5.0)", "sphinx-versions (==1.0.1)", "sphinxcontrib-images (==0.9.2)"]
-testing = ["ipywidgets", "multiprocess", "multiprocess (>=0.70.15)", "numpy", "pywin32 (>=301)", "rich"]
-
 [[package]]
 name = "mpmath"
 version = "1.3.0"
@@ -3823,10 +3799,10 @@ files = [
 numpy = [
     {version = ">=1.21.0", markers = "python_version == \"3.9\" and platform_system == \"Darwin\" and platform_machine == \"arm64\""},
     {version = ">=1.19.3", markers = "platform_system == \"Linux\" and platform_machine == \"aarch64\" and python_version >= \"3.8\" and python_version < \"3.10\" or python_version > \"3.9\" and python_version < \"3.10\" or python_version >= \"3.9\" and platform_system != \"Darwin\" and python_version < \"3.10\" or python_version >= \"3.9\" and platform_machine != \"arm64\" and python_version < \"3.10\""},
-    {version = ">=1.26.0", markers = "python_version >= \"3.12\""},
-    {version = ">=1.23.5", markers = "python_version >= \"3.11\" and python_version < \"3.12\""},
     {version = ">=1.21.4", markers = "python_version >= \"3.10\" and platform_system == \"Darwin\" and python_version < \"3.11\""},
     {version = ">=1.21.2", markers = "platform_system != \"Darwin\" and python_version >= \"3.10\" and python_version < \"3.11\""},
+    {version = ">=1.23.5", markers = "python_version >= \"3.11\" and python_version < \"3.12\""},
+    {version = ">=1.26.0", markers = "python_version >= \"3.12\""},
 ]
 
 [[package]]
@@ -3849,10 +3825,10 @@ files = [
 numpy = [
     {version = ">=1.21.0", markers = "python_version == \"3.9\" and platform_system == \"Darwin\" and platform_machine == \"arm64\""},
     {version = ">=1.19.3", markers = "platform_system == \"Linux\" and platform_machine == \"aarch64\" and python_version >= \"3.8\" and python_version < \"3.10\" or python_version > \"3.9\" and python_version < \"3.10\" or python_version >= \"3.9\" and platform_system != \"Darwin\" and python_version < \"3.10\" or python_version >= \"3.9\" and platform_machine != \"arm64\" and python_version < \"3.10\""},
-    {version = ">=1.26.0", markers = "python_version >= \"3.12\""},
-    {version = ">=1.23.5", markers = "python_version >= \"3.11\" and python_version < \"3.12\""},
     {version = ">=1.21.4", markers = "python_version >= \"3.10\" and platform_system == \"Darwin\" and python_version < \"3.11\""},
     {version = ">=1.21.2", markers = "platform_system != \"Darwin\" and python_version >= \"3.10\" and python_version < \"3.11\""},
+    {version = ">=1.23.5", markers = "python_version >= \"3.11\" and python_version < \"3.12\""},
+    {version = ">=1.26.0", markers = "python_version >= \"3.12\""},
 ]
 
 [[package]]
@@ -4037,8 +4013,8 @@ files = [
 [package.dependencies]
 numpy = [
     {version = ">=1.22.4", markers = "python_version < \"3.11\""},
-    {version = ">=1.26.0", markers = "python_version >= \"3.12\""},
     {version = ">=1.23.2", markers = "python_version == \"3.11\""},
+    {version = ">=1.26.0", markers = "python_version >= \"3.12\""},
 ]
 python-dateutil = ">=2.8.2"
 pytz = ">=2020.1"
@@ -6096,21 +6072,6 @@ files = [
 cryptography = ">=2.0"
 jeepney = ">=0.6"
 
-[[package]]
-name = "semchunk"
-version = "2.2.2"
-description = "A fast and lightweight Python library for splitting text into semantically meaningful chunks."
-optional = false
-python-versions = ">=3.9"
-files = [
-    {file = "semchunk-2.2.2-py3-none-any.whl", hash = "sha256:94ca19020c013c073abdfd06d79a7c13637b91738335f3b8cdb5655ee7cc94d2"},
-    {file = "semchunk-2.2.2.tar.gz", hash = "sha256:940e89896e64eeb01de97ba60f51c8c7b96c6a3951dfcf574f25ce2146752f52"},
-]
-
-[package.dependencies]
-mpire = {version = "*", extras = ["dill"]}
-tqdm = "*"
-
 [[package]]
 name = "semver"
 version = "2.13.0"
@@ -7751,4 +7712,4 @@ tesserocr = ["tesserocr"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "08d30cee8d77f9beee32d5dbec1643367ecae2b4c4b47b57fcb337711471eb5c"
+content-hash = "fb8f2a4d8229bed7e093c92117ed4d4ea4fbcbaaafddd375357d3d32df0504d5"
diff --git a/pyproject.toml b/pyproject.toml
index d5ea2955..81c3be9e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ packages = [{include = "docling"}]
 ######################
 python = "^3.9"
 pydantic = "^2.0.0"
-docling-core = { version = "^2.15.1", extras = ["chunking"] }
+docling-core = {git = "https://github.com/DS4SD/docling-core", rev = "dev/add-geometric-operations-in-boundingbox"}
 docling-ibm-models = "^3.3.0"
 deepsearch-glm = "^1.0.0"
 docling-parse = "^3.1.0"