diff --git a/package.json b/package.json
index 106417d07..1bb21b7c9 100644
--- a/package.json
+++ b/package.json
@@ -30,6 +30,7 @@
     "commitplease": "3.2.0",
     "core-js-bundle": "3.0.0",
     "eslint-config-jquery": "2.0.0",
+    "eslint-plugin-import": "2.18.2",
     "grunt": "1.0.4",
     "grunt-babel": "8.0.0",
     "grunt-cli": "1.3.2",
diff --git a/src/.eslintrc.json b/src/.eslintrc.json
index 44cb3a179..4ac59e28b 100644
--- a/src/.eslintrc.json
+++ b/src/.eslintrc.json
@@ -8,6 +8,13 @@
 		"sourceType": "module"
 	},
 
+	"plugins": [ "import" ],
+
+	"rules": {
+		"import/extensions": [ "error", "always" ],
+		"import/no-cycle": "error"
+	},
+
 	"overrides": [
 		{
 			"files": "wrapper.js",