diff --git a/.editorconfig b/.editorconfig
index 8f76055d..2e10a0d5 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -1,2 +1,2 @@
-[*.md]
+[README.md]
 max_line_length = unset
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 58c9f08c..47e0cb79 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
 # Changelog
 
+## 0.5.1 - 2020-06-19
+
+### Bug fixes
+
+* Add dependency on `attr_extras` back as it was mistakenly removed in the
+  previous release. ([#92])
+
+[#92]: https://github.com/mcmire/super_diff/pull/92
+
 ## 0.5.0 - 2020-06-18
 
 ### Breaking changes