diff --git a/package.json b/package.json
index 5cc4486..60bdf9c 100644
--- a/package.json
+++ b/package.json
@@ -21,6 +21,7 @@
     "test": "echo \"Write tests! -> https://gatsby.app/unit-testing\""
   },
   "dependencies": {
+    "core-js": "^2.*",
     "gatsby": "^2.0.76",
     "gatsby-awesome-pagination": "^0.3.3",
     "gatsby-image": "^2.0.20",