diff --git a/lib/edge.js b/lib/edge.js
index f09e170a..3a06ab91 100644
--- a/lib/edge.js
+++ b/lib/edge.js
@@ -7,7 +7,6 @@ var versionMap = [
     [ /^16\./, '16.20.2' ],
     [ /^18\./, '18.19.1' ],
     [ /^20\./, '20.11.1' ],
-    [ /^21\./, '21.7.1' ],
     [ /^22\./, '22.1.0' ],
 ];