diff --git a/setup.py b/setup.py
index dcaf0792..568f409f 100644
--- a/setup.py
+++ b/setup.py
@@ -10,8 +10,8 @@
     postgresql_dev_requires
     + crypto_requires
     + [
-        "Sphinx==4.2.0",
-        "sphinx_rtd_theme==1.3.0",
+        "Sphinx>=5.0,<=6.0",
+        "sphinx_rtd_theme==2.0.0",
         "orjson",
         "pydantic",
     ]