diff --git a/README.md b/README.md
index 4ec9224..831187c 100644
--- a/README.md
+++ b/README.md
@@ -297,7 +297,8 @@ An attempt to establish a list of falsehoods about testing.
 - [Big List of Naughty
 Strings](https://github.com/minimaxir/big-list-of-naughty-strings) - Challenge
 your assumptions about strings.
-
+- [Popular misconceptions about mtime](https://apenwarr.ca/log/20181113) - Part
+of a post on why file mtime comparison could be considered harmful.
 
 ## Typography