diff --git a/pyproject.toml b/pyproject.toml
index 92d9042..01fbf5a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -72,7 +72,7 @@ dev = [
 # Material for MkDocs 9.x targets MkDocs 1.x; avoid resolving an incompatible
 # future MkDocs 2 release in documentation and CI environments.
 docs = ["mkdocs>=1.5,<2", "mkdocs-material>=9.5"]
-notebooks = ["jupyter>=1.0", "nbformat>=5.10", "nbclient>=0.10", "ipykernel>=6.29"]
+notebooks = ["jupyter>=1.0", "nbformat>=5.11.0", "nbclient>=0.10", "ipykernel>=6.29"]
 
 [project.scripts]
 quantlab = "quantlab.cli:app"
diff --git a/uv.lock b/uv.lock
index 8974639..f7cbd1e 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1628,7 +1628,7 @@ wheels = [
 
 [[package]]
 name = "nbformat"
-version = "5.10.4"
+version = "5.11.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "fastjsonschema" },
@@ -1636,9 +1636,9 @@ dependencies = [
     { name = "jupyter-core" },
     { name = "traitlets" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/6d/fd/91545e604bc3dad7dca9ed03284086039b294c6b3d75c0d2fa45f9e9caf3/nbformat-5.10.4.tar.gz", hash = "sha256:322168b14f937a5d11362988ecac2a4952d3d8e3a2cbeb2319584631226d5b3a", size = 142749, upload-time = "2024-04-04T11:20:37.371Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/b2/fd/80f407a9525bc5bd9865e5c37db3b78867fa43217f8aac5eab22b5f028b3/nbformat-5.11.0.tar.gz", hash = "sha256:7dbaed4a69cae28c2b4d44ab7430a6af4544fb89455023f6f21550be757b60c8", size = 151822, upload-time = "2026-08-06T12:29:55.597Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/a9/82/0340caa499416c78e5d8f5f05947ae4bc3cba53c9f038ab6e9ed964e22f1/nbformat-5.10.4-py3-none-any.whl", hash = "sha256:3b48d6c8fbca4b299bf3982ea7db1af21580e4fec269ad087b9e81588891200b", size = 78454, upload-time = "2024-04-04T11:20:34.895Z" },
+    { url = "https://files.pythonhosted.org/packages/be/4a/0eece9dad5e73230ca972f7bc29456ce7d74772f123d401fcf67379008f7/nbformat-5.11.0-py3-none-any.whl", hash = "sha256:f70a17f591a9ccd1c601d5e61a4b20972703926df0ba42458ce14bf575766bb6", size = 79820, upload-time = "2026-08-06T12:29:54.178Z" },
 ]
 
 [[package]]
@@ -2404,7 +2404,7 @@ requires-dist = [
     { name = "mkdocs-material", marker = "extra == 'docs'", specifier = ">=9.5" },
     { name = "mypy", marker = "extra == 'dev'", specifier = ">=2.3" },
     { name = "nbclient", marker = "extra == 'notebooks'", specifier = ">=0.10" },
-    { name = "nbformat", marker = "extra == 'notebooks'", specifier = ">=5.10" },
+    { name = "nbformat", marker = "extra == 'notebooks'", specifier = ">=5.11.0" },
     { name = "numpy", specifier = ">=2.5.2" },
     { name = "optuna", marker = "extra == 'extra'", specifier = ">=3.5" },
     { name = "pandas", specifier = ">=2.1" },