diff --git a/docs/requirements.txt b/docs/requirements.txt
index a9f0e84..f21bef7 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -2,18 +2,18 @@
 # Modern Sphinx with stable Jupyter versions to avoid timezone issues
 
 # Core Sphinx and extensions (modern versions for RTD compatibility)
-sphinx>=5.0,<8.0
+sphinx>=5.0,<9.0
 sphinx-design
 sphinx-copybutton
 pydata-sphinx-theme
 
 # Notebook support with stable version pinning
-myst-nb>=0.15.0,<1.4.0
+myst-nb>=0.15.0,<1.5.0
 
 # Use stable Jupyter versions that work well in containerized environments
-jupyter-client>=7.0.0,<8.7.0
-nbclient>=0.5.13,<0.11.0
-jupyter-cache>=0.5.0,<1.1.0
+jupyter-client>=8.9.1,<8.10.0
+nbclient>=0.11.0,<0.12.0
+jupyter-cache>=1.0.1,<1.1.0
 
 # Additional utilities
 setuptools>=61.0
diff --git a/pyproject.toml b/pyproject.toml
index 3324a35..b4e107e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -82,9 +82,9 @@ dev = [
 ]
 # Documentation dependencies
 docs = [
-    "sphinx>=5.0,<8.0",
+    "sphinx>=5.0,<9.0",
     "sphinx-design",
-    "myst-nb>=0.15.0,<1.4.0",
+    "myst-nb>=0.15.0,<1.5.0",
     "sphinx-copybutton",
     "pydata-sphinx-theme",
 ]
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 841d0b5..cbd0bd0 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -12,8 +12,8 @@ mypy
 isort
 
 # Documentation dependencies  
-sphinx>=5.0,<8.0
+sphinx>=5.0,<9.0
 sphinx-design
-myst-nb>=0.15.0,<1.4.0
+myst-nb>=0.15.0,<1.5.0
 sphinx-copybutton
 pydata-sphinx-theme