diff --git a/History.markdown b/History.markdown
index d5891406..8ff70c6b 100644
--- a/History.markdown
+++ b/History.markdown
@@ -42,6 +42,7 @@
   * Rubocop Gemfile (#5671)
   * update Classifier-Reborn to 2.1.0 (#5711)
   * Rubocop: fix Rakefile and gemspec (#5745)
+  * Use `assert_nil` (#5725)
 
 ### Documentation