diff --git a/setup.cfg b/setup.cfg
index befdee356c873..4698801c91da8 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -92,7 +92,7 @@ install_requires =
     # Required by vendored-in connexion
     clickclick>=1.2
     colorlog>=4.0.2, <6.0
-    croniter>=0.3.17, <1.1
+    croniter>=0.3.17
     cryptography>=0.9.3
     dataclasses;python_version<"3.7"
     dill>=0.2.2, <0.4