diff --git a/doc/changelog.d/3478.dependencies.md b/doc/changelog.d/3478.dependencies.md
new file mode 100644
index 0000000000..ee0f7490e6
--- /dev/null
+++ b/doc/changelog.d/3478.dependencies.md
@@ -0,0 +1 @@
+build: bump the documentation group with 3 updates
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index d3c6fd65ca..2ca8ce34fd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -89,17 +89,17 @@ doc = [
     "pandas==2.2.3",
     "plotly==5.24.1",
     "pyiges[full]==0.3.1",
-    "pypandoc==1.13",
+    "pypandoc==1.14",
     "pytest-sphinx==0.6.3",
     "pythreejs==2.4.2",
     "sphinx-autobuild==2024.10.3",
     "sphinx-autodoc-typehints==1.25.2",
     "sphinx-copybutton==0.5.2",
     "sphinx-design==0.6.1",
-    "sphinx-gallery==0.17.1",
+    "sphinx-gallery==0.18.0",
     "sphinx-jinja==2.0.2",
     "sphinx-notfound-page==1.0.4",
-    "sphinx==8.0.2",
+    "sphinx==8.1.0",
     "sphinxcontrib-websupport==2.0.0",
     "sphinxemoji==0.3.1",
     "vtk==9.3.1",