diff --git a/package.json b/package.json
index 7f90330..d094ac6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bugsnag-sourcemaps",
-  "version": "1.0.0-rc.3",
+  "version": "1.0.0-rc.4",
   "keywords": [
     "bugsnag",
     "source-maps"