diff --git a/package.json b/package.json
index 02d512d..7de3e33 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "reactants-products-and-leftovers",
-  "version": "1.2.16",
+  "version": "1.2.17-rc.1",
   "license": "GPL-3.0",
   "repository": {
     "type": "git",