diff --git a/pyproject.toml b/pyproject.toml
index 1d7d8615..5364e636 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ dependencies = [
     "jinja2<4.0.0,>=3.1.6",
     "django-countries>=8.2.0,<9.0.0",
     "dict2xml>=1.7.8,<2.0.0",
-    "Sphinx<6,>=5",
+    "Sphinx>=5.3.0,<6",
     "tomli>=2.4.1,<3.0.0",
     "django-honeypot>=1.3.0,<2",
     "pydantic-extra-types>=2.11.1,<3.0.0",