diff --git a/index.js b/index.js
index 85f7254..0dde7c2 100644
--- a/index.js
+++ b/index.js
@@ -287,6 +287,8 @@ module.exports = {
 
 		'no-extra-semi': 'off',
 		'@typescript-eslint/no-extra-semi': 'error',
+		'no-loop-func': 'off',
+		'@typescript-eslint/no-loop-func': 'error',
 		'no-loss-of-precision': 'off',
 		'@typescript-eslint/no-loss-of-precision': 'error',
 		'@typescript-eslint/no-extraneous-class': [
diff --git a/package.json b/package.json
index 3efedad..64429c7 100644
--- a/package.json
+++ b/package.json
@@ -44,16 +44,16 @@
 		"simple"
 	],
 	"devDependencies": {
-		"@typescript-eslint/eslint-plugin": "^3.10.0",
-		"@typescript-eslint/parser": "^3.10.0",
+		"@typescript-eslint/eslint-plugin": "^4.1.0",
+		"@typescript-eslint/parser": "^4.1.0",
 		"ava": "^2.4.0",
-		"eslint": "^7.7.0",
+		"eslint": "^7.8.1",
 		"temp-write": "^4.0.0",
-		"typescript": "^3.9.5"
+		"typescript": "^4.0.2"
 	},
 	"peerDependencies": {
-		"@typescript-eslint/eslint-plugin": ">=3.10.0",
-		"eslint": ">=6.6.0",
+		"@typescript-eslint/eslint-plugin": ">=4.1.0",
+		"eslint": ">=7.8.0",
 		"typescript": ">=3.6.0"
 	}
 }