diff --git a/docs/pages/release_notes.md b/docs/pages/release_notes.md
index a374402d01..11ca55d9bb 100644
--- a/docs/pages/release_notes.md
+++ b/docs/pages/release_notes.md
@@ -75,5 +75,7 @@ the breaking API changes will be performed in 7.0.0.
 
 ### External Contributions
 
+*   [#1309](https://github.com/pmd/pmd/pull/1309): \[core] \[CPD] Decouple Antlr Tokenizer implementation from any CPD language supported with Antlr - [Matías Fraga](https://github.com/matifraga)
+
 {% endtocmaker %}