diff --git a/docs/4.0_migration.md b/docs/4.0_migration.md
index f8abedf..923d849 100644
--- a/docs/4.0_migration.md
+++ b/docs/4.0_migration.md
@@ -32,4 +32,4 @@ External API did not change.
 - `.validateUrl()` -> moved to root class `.validateLink()`
 - added `.normalizeLink()` & `.normalizeLinkText()` to root class, and removed
   `normalizeUrl()` from utils.
-- removed `replaceEntities()` in `utils`.
+- removed `replaceEntities()` in `utils`.