diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index 436ff8c..acc3e00 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [16.x, 18.x, 20.x]
+        node-version: [18.x, 20.x]
         # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
 
     steps:
diff --git a/package-lock.json b/package-lock.json
index 1fe1f1b..83f9ead 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "element-size-reporter",
-  "version": "0.13.2",
+  "version": "0.14.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "element-size-reporter",
-      "version": "0.13.2",
+      "version": "0.14.0",
       "license": "BSD-3-Clause",
       "devDependencies": {
         "@babel/cli": "^7.22.15",
@@ -29,7 +29,7 @@
         "rimraf": "^5.0.1"
       },
       "engines": {
-        "node": ">= 16"
+        "node": ">= 18"
       }
     },
     "node_modules/@aashutoshrathi/word-wrap": {
diff --git a/package.json b/package.json
index 12a637c..f548507 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "element-size-reporter",
-  "version": "0.13.2",
+  "version": "0.14.0",
   "description": "Reports width, height, and top for selected DOM elements",
   "main": "dist/index.js",
   "exports": {
@@ -65,6 +65,6 @@
   },
   "dependencies": {},
   "engines": {
-    "node": ">= 16"
+    "node": ">= 18"
   }
 }
diff --git a/src/tests/unit/index.js b/src/tests/unit/index.js
index 117e703..8d7d116 100644
--- a/src/tests/unit/index.js
+++ b/src/tests/unit/index.js
@@ -13,7 +13,6 @@ import { Simple, setMockReporter } from '../fixtures/Simple.jsx';
 import createSizeReporter from '../../lib/index.js';
 
 describe('sizeReporter', () => {
-  let testUtils;
 
   before('sizeReporter', () => {
     domStart();
@@ -130,7 +129,7 @@ describe('sizeReporter', () => {
         ReactDOM.createRoot(container).render(element);
       });
 
-      return result;
+      return act(() => result);
     });
   });