diff --git a/ManifestButton/package.json b/ManifestButton/package.json
index 13b2849..fd0015f 100644
--- a/ManifestButton/package.json
+++ b/ManifestButton/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@dbmdz/mirador-manifestbutton",
-  "version": "0.0.0",
+  "version": "1.0.0",
   "description": "Adds an extra button to every window that links to the loaded manifest.",
   "keywords": [
     "iiif",