diff --git a/package.json b/package.json
index d0a59cf..ea03e47 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "rutherford-scattering",
-  "version": "1.1.11",
+  "version": "1.1.12-rc.1",
   "license": "GPL-3.0",
   "repository": {
     "type": "git",