Use asottile/add-trailing-comma
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index f39150b..9467acf 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -23,6 +23,10 @@
     -   id: reorder-python-imports
         language_version: python2.7
 -   repo: https://github.com/asottile/pyupgrade
-    sha: v1.0.0
+    sha: v1.1.2
     hooks:
     -   id: pyupgrade
+-   repo: https://github.com/asottile/add-trailing-comma
+    sha: v0.3.0
+    hooks:
+    -   id: add-trailing-comma