diff --git a/package.json b/package.json
index 197f02b7c..446775d2c 100644
--- a/package.json
+++ b/package.json
@@ -159,7 +159,7 @@
     "sequelize-encrypted": "0.1.0",
     "slate": "^0.19.30",
     "slate-collapse-on-escape": "^0.2.1",
-    "slate-drop-or-paste-images": "tommoor/slate-drop-or-paste-images#dev",
+    "slate-drop-or-paste-images": "tommoor/slate-drop-or-paste-images#f599369ab83bed60f4a804d553d7889716bf9ec1",
     "slate-edit-code": "^0.10.2",
     "slate-edit-list": "^0.7.0",
     "slate-markdown-serializer": "tommoor/slate-markdown-serializer",
diff --git a/server/migrations/20170827182423-improve-references.js b/server/migrations/20170827182423-improve-references.js
index 788f3b60c..a8bd04df1 100644
--- a/server/migrations/20170827182423-improve-references.js
+++ b/server/migrations/20170827182423-improve-references.js
@@ -1,5 +1,6 @@
 module.exports = {
   up: async function(queryInterface, Sequelize) {
+    await queryInterface.removeIndex('documents', 'atlasId_foreign_idx');
     await queryInterface.changeColumn('documents', 'atlasId', {
       type: Sequelize.UUID,
       allowNull: true,
diff --git a/yarn.lock b/yarn.lock
index 02cbb23b2..c010a0cdb 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8019,9 +8019,9 @@ slate-collapse-on-escape@^0.2.1:
   dependencies:
     to-pascal-case "^1.0.0"
 
-slate-drop-or-paste-images@tommoor/slate-drop-or-paste-images#dev:
+slate-drop-or-paste-images@tommoor/slate-drop-or-paste-images#f599369ab83bed60f4a804d553d7889716bf9ec1:
   version "0.5.0"
-  resolved "https://codeload.github.com/tommoor/slate-drop-or-paste-images/tar.gz/935894631acb528b1eec6a8a1a78857da9d0d1da"
+  resolved "https://codeload.github.com/tommoor/slate-drop-or-paste-images/tar.gz/f599369ab83bed60f4a804d553d7889716bf9ec1"
   dependencies:
     data-uri-to-blob "0.0.4"
     es6-promise "^4.0.5"