diff --git a/.babelrc b/.babelrc
deleted file mode 100644
index 141f9078..00000000
--- a/.babelrc
+++ /dev/null
@@ -1,40 +0,0 @@
-{
-  "presets": [
-    [
-      "@babel/preset-env",
-      {
-        "loose": true,
-        "targets": {
-          "node": "8"
-        }
-      }
-    ],
-    "@babel/preset-react",
-    "@babel/preset-flow"
-  ],
-  "env": {
-    "test": {
-      "plugins": [
-        "@babel/plugin-transform-react-jsx-source",
-        "istanbul"
-      ]
-    }
-  },
-  "plugins": [
-    "@babel/plugin-transform-flow-strip-types",
-    "@babel/plugin-syntax-dynamic-import",
-    "@babel/plugin-syntax-import-meta",
-    "@babel/plugin-proposal-class-properties",
-    "@babel/plugin-proposal-json-strings",
-    [
-      "@babel/plugin-proposal-decorators",
-      {
-        "legacy": true
-      }
-    ],
-    "@babel/plugin-proposal-function-sent",
-    "@babel/plugin-proposal-export-namespace-from",
-    "@babel/plugin-proposal-numeric-separator",
-    "@babel/plugin-proposal-throw-expressions"
-  ]
-}
diff --git a/.babelrc.js b/.babelrc.js
new file mode 100644
index 00000000..d77bc9d0
--- /dev/null
+++ b/.babelrc.js
@@ -0,0 +1,36 @@
+const { NODE_ENV } = process.env
+const test = NODE_ENV === 'test'
+const loose = true
+
+module.exports = {
+  presets: [
+    [
+      '@babel/preset-env',
+      {
+        loose,
+        ...(test ? { targets: { node: '8' } } : {})
+      }
+    ],
+    '@babel/preset-react',
+    '@babel/preset-flow'
+  ],
+  plugins: [
+    '@babel/plugin-transform-flow-strip-types',
+    '@babel/plugin-syntax-dynamic-import',
+    '@babel/plugin-syntax-import-meta',
+    ['@babel/plugin-proposal-class-properties', { loose }],
+    '@babel/plugin-proposal-json-strings',
+    [
+      '@babel/plugin-proposal-decorators',
+      {
+        legacy: true
+      }
+    ],
+    '@babel/plugin-proposal-function-sent',
+    '@babel/plugin-proposal-export-namespace-from',
+    '@babel/plugin-proposal-numeric-separator',
+    '@babel/plugin-proposal-throw-expressions',
+    test && '@babel/plugin-transform-react-jsx-source',
+    test && 'istanbul'
+  ].filter(Boolean)
+}
diff --git a/rollup.config.js b/rollup.config.js
index 1f39c0d5..acd6a018 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -68,38 +68,7 @@ export default {
     flow(),
     commonjs({ include: 'node_modules/**' }),
     babel({
-      exclude: 'node_modules/**',
-      babelrc: false,
-      runtimeHelpers: true,
-      presets: [
-        [
-          '@babel/preset-env',
-          {
-            loose: true,
-            modules: false
-          }
-        ],
-        '@babel/preset-react',
-        '@babel/preset-flow'
-      ],
-      plugins: [
-        ['@babel/plugin-transform-runtime', { useESModules: !cjs }],
-        '@babel/plugin-transform-flow-strip-types',
-        '@babel/plugin-syntax-dynamic-import',
-        '@babel/plugin-syntax-import-meta',
-        '@babel/plugin-proposal-class-properties',
-        '@babel/plugin-proposal-json-strings',
-        [
-          '@babel/plugin-proposal-decorators',
-          {
-            legacy: true
-          }
-        ],
-        '@babel/plugin-proposal-function-sent',
-        '@babel/plugin-proposal-export-namespace-from',
-        '@babel/plugin-proposal-numeric-separator',
-        '@babel/plugin-proposal-throw-expressions'
-      ]
+      exclude: 'node_modules/**'
     }),
     umd
       ? replace({