diff --git a/pyproject.toml b/pyproject.toml
index 52d8d147..f25340ce 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -70,7 +70,7 @@ optional-dependencies.dev = [
     "sphinx==8.1.3",
     "sphinx-copybutton==0.5.2",
     "sphinx-substitution-extensions==2024.10.17",
-    "sphinxcontrib-spelling==8",
+    "sphinxcontrib-spelling==8.0.1",
     "sybil==9.0.0",
     "types-requests==2.32.0.20241016",
     "vulture==2.14",