diff --git a/pyproject.toml b/pyproject.toml
index 33c6613a1..c62e02cb0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -321,7 +321,7 @@ dev = [
     "PyYAML==6.0.1",
     "requests-mock-flask==2023.5.14",
     "ruff==0.3.7",
-    "Sphinx==7.2.6",
+    "Sphinx==7.3.5",
     "sphinx-prompt==1.8",
     "Sphinx-Substitution-Extensions==2024.2.25",
     "sphinx-toolbox==3.5",