diff --git a/Formula/commitizen.rb b/Formula/commitizen.rb
index 11b382604cbf..d3903a94ea66 100644
--- a/Formula/commitizen.rb
+++ b/Formula/commitizen.rb
@@ -3,8 +3,8 @@ class Commitizen < Formula
 
   desc "Defines a standard way of committing rules and communicating it"
   homepage "https://commitizen-tools.github.io/commitizen/"
-  url "https://files.pythonhosted.org/packages/0d/b1/aa55046b895f56aad830dbedc1a44352246e3430ce60db0c0c6e6aeff95f/commitizen-2.8.2.tar.gz"
-  sha256 "9a57c1d9951276cc48f2c57174aec599915cade83b6530d3b4846628866f1d45"
+  url "https://files.pythonhosted.org/packages/ea/33/4e6843b6f8b834a1c50969bff4bcd73d027b3037f7a49fbb5f0ea8ff4597/commitizen-2.9.0.tar.gz"
+  sha256 "9d1b92688d417d600257e50d55c1f9aa61dea0588ac4272d33b75caf02687ca6"
   license "MIT"
   head "https://github.com/commitizen-tools/commitizen.git"
 
@@ -42,8 +42,8 @@ class Commitizen < Formula
   end
 
   resource "packaging" do
-    url "https://files.pythonhosted.org/packages/55/fd/fc1aca9cf51ed2f2c11748fa797370027babd82f87829c7a8e6dbe720145/packaging-20.4.tar.gz"
-    sha256 "4357f74f47b9c12db93624a82154e9b120fa8293699949152b22065d556079f8"
+    url "https://files.pythonhosted.org/packages/16/7c/33ae3aa02eb10ca726b21aa88d338e3f619c674e4fb8544eb352330d880a/packaging-20.7.tar.gz"
+    sha256 "05af3bb85d320377db281cf254ab050e1a7ebcbf5410685a9a407e18a1f81236"
   end
 
   resource "prompt-toolkit" do
@@ -66,11 +66,6 @@ class Commitizen < Formula
     sha256 "f2999f01735db77a80d6cb119766cb15b84c468cab325168941a3e0d91207437"
   end
 
-  resource "six" do
-    url "https://files.pythonhosted.org/packages/6b/34/415834bfdafca3c5f451532e8a8d9ba89a21c9743a0c59fbd0205c7f9426/six-1.15.0.tar.gz"
-    sha256 "30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259"
-  end
-
   resource "termcolor" do
     url "https://files.pythonhosted.org/packages/8a/48/a76be51647d0eb9f10e2a4511bf3ffb8cc1e6b14e9e4fab46173aa79f981/termcolor-1.1.0.tar.gz"
     sha256 "1d6d69ce66211143803fbc56652b41d73b4a400a2891d7bf7a1cdf4c02de613b"