diff --git a/pyproject.toml b/pyproject.toml
index 7d99b08..09364e5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -59,7 +59,7 @@ dev = [
   # Docs
   "aafigure",
   "pillow",
-  "sphinx",
+  "sphinx<9",
   "furo",
   "gp-libs",
   "sphinx-autobuild",
@@ -89,7 +89,7 @@ dev = [
 docs = [
   "aafigure",
   "pillow",
-  "sphinx",
+  "sphinx<9",
   "furo",
   "gp-libs",
   "sphinx-autobuild",
diff --git a/uv.lock b/uv.lock
index 154122e..cc9199d 100644
--- a/uv.lock
+++ b/uv.lock
@@ -322,7 +322,7 @@ name = "exceptiongroup"
 version = "1.3.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "typing-extensions", marker = "python_full_version < '3.13'" },
+    { name = "typing-extensions", marker = "python_full_version < '3.11'" },
 ]
 sdist = { url = "https://files.pythonhosted.org/packages/50/79/66800aadf48771f6b62f7eb014e352e5d06856655206165d775e675a02c9/exceptiongroup-1.3.1.tar.gz", hash = "sha256:8b412432c6055b0b7d14c310000ae93352ed6754f70fa8f7c34141f91c4e3219", size = 30371, upload-time = "2025-11-21T23:01:54.787Z" }
 wheels = [
@@ -439,7 +439,7 @@ dev = [
     { name = "pytest-rerunfailures" },
     { name = "pytest-watcher" },
     { name = "ruff" },
-    { name = "sphinx" },
+    { name = "sphinx", specifier = "<9" },
     { name = "sphinx-argparse" },
     { name = "sphinx-autobuild" },
     { name = "sphinx-autodoc-typehints" },
@@ -455,7 +455,7 @@ docs = [
     { name = "linkify-it-py" },
     { name = "myst-parser" },
     { name = "pillow" },
-    { name = "sphinx" },
+    { name = "sphinx", specifier = "<9" },
     { name = "sphinx-autobuild" },
     { name = "sphinx-autodoc-typehints" },
     { name = "sphinx-copybutton" },
@@ -1507,11 +1507,11 @@ wheels = [
 
 [[package]]
 name = "urllib3"
-version = "2.6.2"
+version = "2.6.3"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/1e/24/a2a2ed9addd907787d7aa0355ba36a6cadf1768b934c652ea78acbd59dcd/urllib3-2.6.2.tar.gz", hash = "sha256:016f9c98bb7e98085cb2b4b17b87d2c702975664e4f060c6532e64d1c1a5e797", size = 432930, upload-time = "2025-12-11T15:56:40.252Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/c7/24/5f1b3bdffd70275f6661c76461e25f024d5a38a46f04aaca912426a2b1d3/urllib3-2.6.3.tar.gz", hash = "sha256:1b62b6884944a57dbe321509ab94fd4d3b307075e0c2eae991ac71ee15ad38ed", size = 435556, upload-time = "2026-01-07T16:24:43.925Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/6d/b9/4095b668ea3678bf6a0af005527f39de12fb026516fb3df17495a733b7f8/urllib3-2.6.2-py3-none-any.whl", hash = "sha256:ec21cddfe7724fc7cb4ba4bea7aa8e2ef36f607a4bab81aa6ce42a13dc3f03dd", size = 131182, upload-time = "2025-12-11T15:56:38.584Z" },
+    { url = "https://files.pythonhosted.org/packages/39/08/aaaad47bc4e9dc8c725e68f9d04865dbcb2052843ff09c97b08904852d84/urllib3-2.6.3-py3-none-any.whl", hash = "sha256:bf272323e553dfb2e87d9bfd225ca7b0f467b919d7bbd355436d3fd37cb0acd4", size = 131584, upload-time = "2026-01-07T16:24:42.685Z" },
 ]
 
 [[package]]