diff --git a/setup.py b/setup.py
index 7b01e037189d1b976a23319a9fbfd1f0dc87e197..bb8b08bd73b1a52f7d31086275a375fe3d46d274 100755
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@ install_requirements = [
 ]
 
 doc_requirements = [
-    'sphinx>=3.0,<3.1',
+    'sphinx>=3.3,<3.4',
 ]
 
 test_lint_requirements = [