diff --git a/setup.cfg b/setup.cfg
index bd2f9fa7511..e746dd179b2 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -68,7 +68,7 @@ dev =
     types-cryptography==3.3.18
 docs =
     sphinx==7.*
-    sphinx-rtd-theme==2.*
+    sphinx-rtd-theme>=2,<4
 
 [options.package_data]
 firebolt = py.typed