diff --git a/src/related.rs b/src/related.rs
index 75da6fc..f78133e 100644
--- a/src/related.rs
+++ b/src/related.rs
@@ -30,7 +30,7 @@ const KEEP: usize = PER_ARTICLE * 4;
 /// Share of title words two articles from one site must have in common to be
 /// one story re-published under a new URL ("…after AI accusations" and
 /// "…after AI allegations").
-const SAME_SITE_TITLE_OVERLAP: f64 = 0.6;
+const SAME_SITE_TITLE_OVERLAP: f64 = 0.8;
 
 /// What [`refresh`] wrote.
 #[derive(Debug, Default, PartialEq)]