diff --git a/doc/changelog.d/869.documentation.md b/doc/changelog.d/869.documentation.md
new file mode 100644
index 000000000..e353765ba
--- /dev/null
+++ b/doc/changelog.d/869.documentation.md
@@ -0,0 +1 @@
+MAINT: Bump matplotlib from 3.9.1 to 3.9.1.post1
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index f3eb68f6e..1e7050d60 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -60,7 +60,7 @@ doc = [
     "imageio==2.34.2",
     "jupyter_sphinx==0.5.3",
     "jupyterlab>=3.2.8",
-    "matplotlib==3.9.1",
+    "matplotlib==3.9.1.post1",
     "numpy==2.0.1",
     "numpydoc==1.8.0",
     "pandas==2.2.2",