diff --git a/package.json b/package.json
index 814dfa6..8d8446f 100644
--- a/package.json
+++ b/package.json
@@ -38,21 +38,21 @@
   "license": "MIT",
   "typings": "index.d.ts",
   "devDependencies": {
-    "@types/json-stable-stringify": "^1.0.32",
+    "@types/json-stable-stringify": "^1.0.34",
     "@types/node": "^16.11.1",
     "benchmark": "^2.1.4",
     "clone": "^2.1.2",
     "fast-json-stable-stringify": "^2.1.0",
-    "fast-safe-stringify": "^2.0.7",
+    "fast-safe-stringify": "^2.1.1",
     "fast-stable-stringify": "^1.0.0",
     "faster-stable-stringify": "^1.0.0",
     "fastest-stable-stringify": "^2.0.2",
     "json-stable-stringify": "^1.0.1",
-    "json-stringify-deterministic": "^1.0.1",
+    "json-stringify-deterministic": "^1.0.7",
     "json-stringify-safe": "^5.0.1",
-    "standard": "^15.0.0",
+    "standard": "^16.0.4",
     "tap": "^15.0.9",
-    "typescript": "^4.4.3"
+    "typescript": "^4.8.3"
   },
   "repository": {
     "type": "git",
diff --git a/test.js b/test.js
index fbf5b59..b662202 100644
--- a/test.js
+++ b/test.js
@@ -232,9 +232,9 @@ test('null property', function (assert) {
 })
 
 test('nested child circular reference in toJSON', function (assert) {
-  var circle = { some: 'data' }
+  const circle = { some: 'data' }
   circle.circle = circle
-  var a = {
+  const a = {
     b: {
       toJSON: function () {
         // @ts-expect-error
@@ -251,7 +251,7 @@ test('nested child circular reference in toJSON', function (assert) {
       }
     }
   }
-  var o = {
+  const o = {
     a,
     bar: a
   }
@@ -736,7 +736,6 @@ test('indent properly; regression test for issue #16', function (assert) {
     indentedJSONArrayEmpty
   )
   assert.equal(
-    // @ts-ignore
     stringify(o, (k, v) => v, 2),
     indentedJSONReplacer
   )
@@ -755,7 +754,6 @@ test('indent properly; regression test for issue #16', function (assert) {
     indentedJSON.replace(circularIdentifier, circularReplacement)
   )
   assert.equal(
-    // @ts-ignore
     stringify(o, (k, v) => v, 2),
     indentedJSONReplacer.replace(circularIdentifier, circularReplacement)
   )