diff --git a/poetry.lock b/poetry.lock
index 8638878..9df661f 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -4025,24 +4025,25 @@ diagrams = ["jinja2", "railroad-diagrams"]
 
 [[package]]
 name = "pypdf"
-version = "4.3.1"
+version = "6.6.0"
 description = "A pure-python PDF library capable of splitting, merging, cropping, and transforming PDF files"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.9"
 groups = ["main"]
 files = [
-    {file = "pypdf-4.3.1-py3-none-any.whl", hash = "sha256:64b31da97eda0771ef22edb1bfecd5deee4b72c3d1736b7df2689805076d6418"},
-    {file = "pypdf-4.3.1.tar.gz", hash = "sha256:b2f37fe9a3030aa97ca86067a56ba3f9d3565f9a791b305c7355d8392c30d91b"},
+    {file = "pypdf-6.6.0-py3-none-any.whl", hash = "sha256:bca9091ef6de36c7b1a81e09327c554b7ce51e88dad68f5890c2b4a4417f1fd7"},
+    {file = "pypdf-6.6.0.tar.gz", hash = "sha256:4c887ef2ea38d86faded61141995a3c7d068c9d6ae8477be7ae5de8a8e16592f"},
 ]
 
 [package.dependencies]
 typing_extensions = {version = ">=4.0", markers = "python_version < \"3.11\""}
 
 [package.extras]
-crypto = ["PyCryptodome ; python_version == \"3.6\"", "cryptography ; python_version >= \"3.7\""]
-dev = ["black", "flit", "pip-tools", "pre-commit (<2.18.0)", "pytest-cov", "pytest-socket", "pytest-timeout", "pytest-xdist", "wheel"]
+crypto = ["cryptography"]
+cryptodome = ["PyCryptodome"]
+dev = ["black", "flit", "pip-tools", "pre-commit", "pytest-cov", "pytest-socket", "pytest-timeout", "pytest-xdist", "wheel"]
 docs = ["myst_parser", "sphinx", "sphinx_rtd_theme"]
-full = ["Pillow (>=8.0.0)", "PyCryptodome ; python_version == \"3.6\"", "cryptography ; python_version >= \"3.7\""]
+full = ["Pillow (>=8.0.0)", "cryptography"]
 image = ["Pillow (>=8.0.0)"]
 
 [[package]]
@@ -5826,4 +5827,4 @@ type = ["pytest-mypy"]
 [metadata]
 lock-version = "2.1"
 python-versions = "^3.10"
-content-hash = "5f967591fec9fed720b7d9c6c821424110a4d43bb3ae563258736469cdbe191c"
+content-hash = "01cd60b64415616e34770ff88ff49bf5ffbf438fe5739b1e5000134db3967cb0"
diff --git a/pyproject.toml b/pyproject.toml
index 64594d1..59c8871 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ readme = "README.md"
 python = "^3.10"
 google-cloud-aiplatform = {extras = ["evaluation"], version = "^1.130.0"}
 google-cloud-discoveryengine = ">=0.13.12,<0.14.0"
-pypdf = "^4.1.0"
+pypdf = "^6.6.0"
 python-dotenv = "^1.0.1"
 google-cloud-storage = "^2.16.0"
 google-adk = "^1.20.0"