diff --git a/MANIFEST.in b/MANIFEST.in
index 8dd24dc7..0c43f759 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -12,6 +12,7 @@ include test/example.py
 include test/iso_8859_1.py
 include test/fake_configuration/.pep8
 include test/fake_pycodestyle_configuration/tox.ini
+include tox.ini
 recursive-exclude test/suite *.py
 recursive-exclude test/suite/out *.py
 exclude .travis.yml
@@ -27,5 +28,4 @@ exclude test/acid_pypi.py
 exclude test/suite
 exclude test/suite/out
 exclude test/vim_autopep8.py
-exclude tox.ini
 exclude update_readme.py
diff --git a/tox.ini b/tox.ini
index e830d35e..ee01a851 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,5 +8,5 @@ commands=
     python test/acid.py --aggressive test/example.py
     python test/acid.py --compare-bytecode test/example.py
 deps=
-    pycodestyle>=2.0
+    pycodestyle>=2.9.1
     pydiff>=0.1.2