diff --git a/Formula/sceptre.rb b/Formula/sceptre.rb
index 1205061b403b..efd109409328 100644
--- a/Formula/sceptre.rb
+++ b/Formula/sceptre.rb
@@ -6,6 +6,7 @@ class Sceptre < Formula
   url "https://files.pythonhosted.org/packages/93/34/d577860860c42f135953f2b3ae693c70d7c9d4e9a726b27c9d4d49fe10b3/sceptre-2.4.0.tar.gz"
   sha256 "2f01aeaee89cb8b72ffca4caa2861a8f4d33ba93d0ca5e79997b52e954110e5a"
   license "Apache-2.0"
+  revision 1
 
   livecheck do
     url :stable
@@ -18,7 +19,7 @@ class Sceptre < Formula
     sha256 "6b76a01e749fd8dbfb36af12e5787bd1ef9185770aab34806d2cad5f6b02b178" => :high_sierra
   end
 
-  depends_on "python@3.8"
+  depends_on "python@3.9"
 
   resource "boto3" do
     url "https://files.pythonhosted.org/packages/b8/7a/330b454710a8e472ea0acb7e3cd756ba5120316a00f1cf3335d691134833/boto3-1.15.11.tar.gz"