diff --git a/packages/protocol/package.json b/packages/protocol/package.json
index c46eb044ae..22e73283e3 100644
--- a/packages/protocol/package.json
+++ b/packages/protocol/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@trezor/protocol",
-    "version": "1.2.0",
+    "version": "1.2.1-beta.1",
     "license": "See LICENSE.md in repo root",
     "repository": {
         "type": "git",