diff --git a/package.json b/package.json
index b36f1e2..27e312e 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "babel-plugin-transform-es2015-arrow-functions": "^6.3.13",
     "babel-plugin-transform-es2015-block-scoped-functions": "^6.3.13",
     "babel-plugin-transform-es2015-block-scoping": "^6.6.0",
-    "babel-plugin-transform-es2015-classes": "^6.6.0",
+    "babel-plugin-transform-es2015-classes": "^6.24.1",
     "babel-plugin-transform-es2015-computed-properties": "^6.3.13",
     "babel-plugin-transform-es2015-destructuring": "^6.6.0",
     "babel-plugin-transform-es2015-duplicate-keys": "^6.6.0",