diff --git a/package.json b/package.json
index 605ddf3..94dbfc3 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
   },
   "devDependencies": {
     "@babel/core": "7.10.2",
-    "@babel/plugin-proposal-class-properties": "7.0.0",
+    "@babel/plugin-proposal-class-properties": "7.13.0",
     "@babel/plugin-proposal-object-rest-spread": "7.0.0",
     "@babel/plugin-transform-arrow-functions": "7.0.0",
     "@babel/plugin-transform-async-to-generator": "7.0.0",