diff --git a/pyproject.toml b/pyproject.toml
index 520f13e4..30d92d4c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,7 +52,7 @@ dev = [
     "cyclonedx-bom >=4.0.0,<5.0.0",
 ]
 docs = [
-    "sphinx >=5.1.1,<8.0.0",
+    "sphinx >=5.1.1,<9.0.0",
     "sphinx-markdown-builder >=0.6.4,<1.0.0",
 ]
 hooks = [