diff --git a/.babelrc b/.babelrc
index 31749320..ee2d29ae 100644
--- a/.babelrc
+++ b/.babelrc
@@ -1,3 +1,3 @@
 {
-  "presets": ["es2015", "react", "stage-0"]
-}
\ No newline at end of file
+  "presets": ["env", "react", "stage-0"]
+}
diff --git a/package.json b/package.json
index 05bcb18e..58a1ba60 100644
--- a/package.json
+++ b/package.json
@@ -39,6 +39,7 @@
       "<rootDir>/node_modules/lodash",
       "<rootDir>/node_modules/react",
       "<rootDir>/node_modules/react-dom",
+      "<rootDir>/node_modules/react-transition-group",
       "<rootDir>/node_modules/react-testutils-additions",
       "<rootDir>/node_modules/fbjs",
       "<rootDir>/node_modules/fbemitter",
@@ -60,9 +61,10 @@
     "babel-eslint": "*",
     "babel-jest": "*",
     "babel-loader": "*",
-    "babel-preset-es2015": "*",
+    "babel-preset-env": "*",
     "babel-preset-react": "*",
     "babel-preset-stage-0": "*",
+    "create-react-class": "^15.6.2",
     "css-loader": "^0.28.0",
     "d3-selection": "1",
     "eslint": "3.19.0",
@@ -72,7 +74,7 @@
     "extract-text-webpack-plugin": "2.1.0",
     "file-loader": "^0.11.1",
     "html-webpack-plugin": "^2.28.0",
-    "jest-cli": "^19.0.2",
+    "jest-cli": "^21.2.1",
     "jsen": "^0.6.4",
     "json-loader": "^0.5.4",
     "less": "^2.7.2",
@@ -80,6 +82,7 @@
     "react-addons-perf": "^15.4.2",
     "react-measure": "^1.4.7",
     "react-testutils-additions": "^15.2.0",
+    "react-transition-group": "^1.1.2",
     "rimraf": "^2.6.1",
     "rollup": "0.41",
     "rollup-plugin-node-resolve": "3",