diff --git a/.babelrc b/.babelrc
deleted file mode 100644
index 67d6475..0000000
--- a/.babelrc
+++ /dev/null
@@ -1,43 +0,0 @@
-{
-  "env": {
-    "cjs": {
-      "presets": [
-        "@babel/preset-env",
-        "@babel/preset-react"
-      ],
-      "plugins": [
-        "@babel/plugin-proposal-class-properties",
-        "@babel/plugin-transform-runtime",
-        [
-          "transform-react-remove-prop-types",
-          {
-            "mode": "wrap"
-          }
-        ]
-      ]
-    },
-    "es2015": {
-      "presets": [
-        [
-          "@babel/preset-env",
-          {
-            "modules": false,
-            "loose": true
-          }
-        ],
-        "@babel/preset-react"
-      ],
-      "plugins": [
-        "@babel/plugin-syntax-dynamic-import",
-        "@babel/plugin-proposal-class-properties",
-        ["@babel/plugin-transform-runtime", { "useESModules": true }],
-        [
-          "transform-react-remove-prop-types",
-          {
-            "mode": "wrap"
-          }
-        ]
-      ]
-    }
-  }
-}
diff --git a/.babelrc.js b/.babelrc.js
new file mode 100644
index 0000000..0e28729
--- /dev/null
+++ b/.babelrc.js
@@ -0,0 +1,50 @@
+// modified Babel's default to account for __PURE__ annotations
+// https://babeljs.io/docs/options#shouldprintcomment
+const shouldPrintComment = (val) => /@license|@preserve|[#@]__PURE__/.test(val);
+
+module.exports = {
+  env: {
+    cjs: {
+      presets: ["@babel/preset-env", "@babel/preset-react"],
+      plugins: [
+        "@babel/plugin-proposal-class-properties",
+        "@babel/plugin-transform-runtime",
+        [
+          "transform-react-remove-prop-types",
+          {
+            mode: "wrap",
+          },
+        ],
+      ],
+      generatorOpts: {
+        shouldPrintComment,
+      },
+    },
+    es2015: {
+      presets: [
+        [
+          "@babel/preset-env",
+          {
+            modules: false,
+            loose: true,
+          },
+        ],
+        "@babel/preset-react",
+      ],
+      plugins: [
+        "@babel/plugin-syntax-dynamic-import",
+        "@babel/plugin-proposal-class-properties",
+        ["@babel/plugin-transform-runtime", { useESModules: true }],
+        [
+          "transform-react-remove-prop-types",
+          {
+            mode: "wrap",
+          },
+        ],
+      ],
+      generatorOpts: {
+        shouldPrintComment,
+      },
+    },
+  },
+};