diff --git a/pyproject.toml b/pyproject.toml
index 2c0b1d155c6..a1cb14cbd1a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -66,7 +66,7 @@ doc = [
     "numpydoc==1.10.0",
     "ansys-sphinx-theme==1.7.0",
     "sphinx-copybutton==0.5.2",
-    "sphinx-gallery==0.20.0",
+    "sphinx-gallery==0.21.0",
     "sphinxcontrib-mermaid==2.0.0",
     "docker>=6.1.0",
     "matplotlib==3.10.8",