diff --git a/package.json b/package.json
index a303e67..95b6fd6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@lifi/data-types",
-  "version": "5.20.0",
+  "version": "5.21.0-alpha.0",
   "description": "Data types for the LI.FI stack",
   "keywords": [
     "sdk",