diff --git a/.babelrc b/.babelrc
index 9772b93..4e994ca 100644
--- a/.babelrc
+++ b/.babelrc
@@ -8,6 +8,7 @@
     ]
   ],
   "plugins": [
-    "external-helpers"
+    "external-helpers",
+    "transform-object-assign"
   ]
 }
diff --git a/package-lock.json b/package-lock.json
index 761ba16..a2f7d1c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -610,6 +610,15 @@
         "babel-runtime": "6.26.0"
       }
     },
+    "babel-plugin-transform-object-assign": {
+      "version": "6.22.0",
+      "resolved": "https://registry.npmjs.org/babel-plugin-transform-object-assign/-/babel-plugin-transform-object-assign-6.22.0.tgz",
+      "integrity": "sha1-+Z0vZvGgsNSY40bFNZaEdAyqILo=",
+      "dev": true,
+      "requires": {
+        "babel-runtime": "6.26.0"
+      }
+    },
     "babel-plugin-transform-regenerator": {
       "version": "6.26.0",
       "resolved": "https://registry.npmjs.org/babel-plugin-transform-regenerator/-/babel-plugin-transform-regenerator-6.26.0.tgz",
diff --git a/package.json b/package.json
index 4078abc..db03d44 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,7 @@
   "devDependencies": {
     "babel-core": "^6.26.0",
     "babel-plugin-external-helpers": "^6.22.0",
+    "babel-plugin-transform-object-assign": "^6.22.0",
     "babel-preset-env": "^1.6.1",
     "gulp": "^3.9.1",
     "rimraf": "^2.6.2",