Merge pull request #553 from pre-commit/pre-commit-ci-update-config

[pre-commit.ci] pre-commit autoupdate

.pre-commit-config.yaml

diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 50ece94..4160b05 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -27,7 +27,7 @@
     -   id: reorder-python-imports
         args: [--py3-plus]
 -   repo: https://github.com/asottile/pyupgrade
-    rev: v2.7.4
+    rev: v2.9.0
     hooks:
     -   id: pyupgrade
         args: [--py36-plus]