diff --git a/lib/migrations/20160515114000-user-add-tokens.js b/lib/migrations/20160515114000-user-add-tokens.js
index 4f05188..4d5818b 100644
--- a/lib/migrations/20160515114000-user-add-tokens.js
+++ b/lib/migrations/20160515114000-user-add-tokens.js
@@ -1,12 +1,14 @@
 'use strict'
 module.exports = {
   up: function (queryInterface, Sequelize) {
-    queryInterface.addColumn('Users', 'accessToken', Sequelize.STRING)
-    queryInterface.addColumn('Users', 'refreshToken', Sequelize.STRING)
+    return queryInterface.addColumn('Users', 'accessToken', Sequelize.STRING).then(function () {
+      return queryInterface.addColumn('Users', 'refreshToken', Sequelize.STRING)
+    })
   },
 
   down: function (queryInterface, Sequelize) {
-    queryInterface.removeColumn('Users', 'accessToken')
-    queryInterface.removeColumn('Users', 'refreshToken')
+    return queryInterface.removeColumn('Users', 'accessToken').then(function () {
+      return queryInterface.removeColumn('Users', 'refreshToken')
+    })
   }
 }
diff --git a/lib/migrations/20160607060246-support-revision.js b/lib/migrations/20160607060246-support-revision.js
index 114aec2..bcab97e 100644
--- a/lib/migrations/20160607060246-support-revision.js
+++ b/lib/migrations/20160607060246-support-revision.js
@@ -1,24 +1,26 @@
 'use strict'
 module.exports = {
   up: function (queryInterface, Sequelize) {
-    queryInterface.addColumn('Notes', 'savedAt', Sequelize.DATE)
-    queryInterface.createTable('Revisions', {
-      id: {
-        type: Sequelize.UUID,
-        primaryKey: true
-      },
-      noteId: Sequelize.UUID,
-      patch: Sequelize.TEXT,
-      lastContent: Sequelize.TEXT,
-      content: Sequelize.TEXT,
-      length: Sequelize.INTEGER,
-      createdAt: Sequelize.DATE,
-      updatedAt: Sequelize.DATE
+    return queryInterface.addColumn('Notes', 'savedAt', Sequelize.DATE).then(function () {
+      return queryInterface.createTable('Revisions', {
+        id: {
+          type: Sequelize.UUID,
+          primaryKey: true
+        },
+        noteId: Sequelize.UUID,
+        patch: Sequelize.TEXT,
+        lastContent: Sequelize.TEXT,
+        content: Sequelize.TEXT,
+        length: Sequelize.INTEGER,
+        createdAt: Sequelize.DATE,
+        updatedAt: Sequelize.DATE
+      })
     })
   },
 
   down: function (queryInterface, Sequelize) {
-    queryInterface.dropTable('Revisions')
-    queryInterface.removeColumn('Notes', 'savedAt')
+    return queryInterface.dropTable('Revisions').then(function () {
+      return queryInterface.removeColumn('Notes', 'savedAt')
+    })
   }
 }
diff --git a/lib/migrations/20160703062241-support-authorship.js b/lib/migrations/20160703062241-support-authorship.js
index a1d695e..d73923b 100644
--- a/lib/migrations/20160703062241-support-authorship.js
+++ b/lib/migrations/20160703062241-support-authorship.js
@@ -1,25 +1,29 @@
 'use strict'
 module.exports = {
   up: function (queryInterface, Sequelize) {
-    queryInterface.addColumn('Notes', 'authorship', Sequelize.TEXT)
-    queryInterface.addColumn('Revisions', 'authorship', Sequelize.TEXT)
-    queryInterface.createTable('Authors', {
-      id: {
-        type: Sequelize.INTEGER,
-        primaryKey: true,
-        autoIncrement: true
-      },
-      color: Sequelize.STRING,
-      noteId: Sequelize.UUID,
-      userId: Sequelize.UUID,
-      createdAt: Sequelize.DATE,
-      updatedAt: Sequelize.DATE
+    return queryInterface.addColumn('Notes', 'authorship', Sequelize.TEXT).then(function () {
+      return queryInterface.addColumn('Revisions', 'authorship', Sequelize.TEXT)
+    }).then(function () {
+      return queryInterface.createTable('Authors', {
+        id: {
+          type: Sequelize.INTEGER,
+          primaryKey: true,
+          autoIncrement: true
+        },
+        color: Sequelize.STRING,
+        noteId: Sequelize.UUID,
+        userId: Sequelize.UUID,
+        createdAt: Sequelize.DATE,
+        updatedAt: Sequelize.DATE
+      })
     })
   },
 
   down: function (queryInterface, Sequelize) {
-    queryInterface.dropTable('Authors')
-    queryInterface.removeColumn('Revisions', 'authorship')
-    queryInterface.removeColumn('Notes', 'authorship')
+    return queryInterface.dropTable('Authors').then(function () {
+      return queryInterface.removeColumn('Revisions', 'authorship')
+    }).then(function () {
+      return queryInterface.removeColumn('Notes', 'authorship')
+    })
   }
 }
diff --git a/lib/migrations/20161009040430-support-delete-note.js b/lib/migrations/20161009040430-support-delete-note.js
index 6e6fa20..a39d108 100644
--- a/lib/migrations/20161009040430-support-delete-note.js
+++ b/lib/migrations/20161009040430-support-delete-note.js
@@ -1,10 +1,10 @@
 'use strict'
 module.exports = {
   up: function (queryInterface, Sequelize) {
-    queryInterface.addColumn('Notes', 'deletedAt', Sequelize.DATE)
+    return queryInterface.addColumn('Notes', 'deletedAt', Sequelize.DATE)
   },
 
   down: function (queryInterface, Sequelize) {
-    queryInterface.removeColumn('Notes', 'deletedAt')
+    return queryInterface.removeColumn('Notes', 'deletedAt')
   }
 }
diff --git a/lib/migrations/20161201050312-support-email-signin.js b/lib/migrations/20161201050312-support-email-signin.js
index 1f3abb1..d33225f 100644
--- a/lib/migrations/20161201050312-support-email-signin.js
+++ b/lib/migrations/20161201050312-support-email-signin.js
@@ -1,12 +1,14 @@
 'use strict'
 module.exports = {
   up: function (queryInterface, Sequelize) {
-    queryInterface.addColumn('Users', 'email', Sequelize.TEXT)
-    queryInterface.addColumn('Users', 'password', Sequelize.TEXT)
+    return queryInterface.addColumn('Users', 'email', Sequelize.TEXT).then(function () {
+      return queryInterface.addColumn('Users', 'password', Sequelize.TEXT)
+    })
   },
 
   down: function (queryInterface, Sequelize) {
-    queryInterface.removeColumn('Users', 'email')
-    queryInterface.removeColumn('Users', 'password')
+    return queryInterface.removeColumn('Users', 'email').then(function () {
+      return queryInterface.removeColumn('Users', 'password')
+    })
   }
 }