diff --git a/pyproject.toml b/pyproject.toml
index c60dfe920..729e364a0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -82,7 +82,7 @@ optional-dependencies.dev = [
     "sphinx==7.4.7",
     "sphinx-copybutton==0.5.2",
     "sphinx-paramlinks==0.6",
-    "sphinx-substitution-extensions==2024.2.25",
+    "sphinx-substitution-extensions==2024.8.6",
     "sphinx-toolbox==3.7.0",
     "sphinxcontrib-httpdomain==1.8.1",
     "sphinxcontrib-spelling==8",