diff --git a/ratio-and-proportion_en.html b/ratio-and-proportion_en.html
index f09a2f3d..c8b406a1 100644
--- a/ratio-and-proportion_en.html
+++ b/ratio-and-proportion_en.html
@@ -22,7 +22,7 @@
   window.phet.chipper.packageObject =
     {
       "name": "ratio-and-proportion",
-      "version": "1.0.0-dev.63",
+      "version": "1.0.0-dev.64",
       "license": "GPL-3.0",
       "repository": {
         "type": "git",