diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5d4aaef5..8b10eda6 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,6 @@ jobs:
   CI:
     permissions:
       contents: write # for npx prebuild to make release
-      checks: write # to create new checks (coverallsapp/github-action)
     name: ${{ matrix.container || matrix.os }} - Node.js ${{ matrix.nodejs_version }} ${{ matrix.nodejs_arch }} ${{ matrix.prebuild && '- prebuild' }}
     runs-on: ${{ matrix.os }}
     container: ${{ matrix.container }}
@@ -18,7 +17,6 @@ jobs:
           - os: ubuntu-22.04
             container: centos:7
             nodejs_version: 14
-            coverage: true
             prebuild: true
           - os: ubuntu-22.04
             container: centos:7
@@ -95,11 +93,6 @@ jobs:
         run: npm install --build-from-source --unsafe-perm
       - name: Test
         run: npm test
-      - name: Coverage
-        if: matrix.coverage
-        uses: coverallsapp/github-action@1.1.3
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
       - name: Prebuild
         if: matrix.prebuild && startsWith(github.ref, 'refs/tags/')
         env:
diff --git a/README.md b/README.md
index ed167593..47b1b8ec 100644
--- a/README.md
+++ b/README.md
@@ -98,7 +98,6 @@ readableStream
 A [guide for contributors](https://github.com/lovell/sharp/blob/main/.github/CONTRIBUTING.md)
 covers reporting bugs, requesting features and submitting code changes.
 
-[![Test Coverage](https://coveralls.io/repos/lovell/sharp/badge.svg?branch=main)](https://coveralls.io/r/lovell/sharp?branch=main)
 [![Node-API v5](https://img.shields.io/badge/Node--API-v5-green.svg)](https://nodejs.org/dist/latest/docs/api/n-api.html#n_api_n_api_version_matrix)
 
 ## Licensing
diff --git a/lib/resize.js b/lib/resize.js
index e5bc4596..adc3324d 100644
--- a/lib/resize.js
+++ b/lib/resize.js
@@ -511,15 +511,12 @@ function trim (trim) {
     }
   } else if (is.object(trim)) {
     this._setBackgroundColourOption('trimBackground', trim.background);
-
     if (!is.defined(trim.threshold)) {
       this.options.trimThreshold = 10;
-    } else if (is.number(trim.threshold)) {
-      if (trim.threshold >= 0) {
-        this.options.trimThreshold = trim.threshold;
-      } else {
-        throw is.invalidParameterError('threshold', 'positive number', trim);
-      }
+    } else if (is.number(trim.threshold) && trim.threshold >= 0) {
+      this.options.trimThreshold = trim.threshold;
+    } else {
+      throw is.invalidParameterError('threshold', 'positive number', trim);
     }
   } else {
     throw is.invalidParameterError('trim', 'string, number or object', trim);
diff --git a/package.json b/package.json
index dd1f6dcc..b81349c0 100644
--- a/package.json
+++ b/package.json
@@ -92,9 +92,8 @@
     "clean": "rm -rf node_modules/ build/ vendor/ .nyc_output/ coverage/ test/fixtures/output.*",
     "test": "npm run test-lint && npm run test-unit && npm run test-licensing",
     "test-lint": "semistandard && cpplint",
-    "test-unit": "nyc --reporter=lcov --branches=99 mocha --slow=1000 --timeout=60000 ./test/unit/*.js",
+    "test-unit": "nyc --reporter=lcov --reporter=text --check-coverage --branches=100 mocha --slow=1000 --timeout=10000 ./test/unit/*.js",
     "test-licensing": "license-checker --production --summary --onlyAllow=\"Apache-2.0;BSD;ISC;MIT\"",
-    "test-coverage": "./test/coverage/report.sh",
     "test-leak": "./test/leak/leak.sh",
     "docs-build": "documentation lint lib && node docs/build && node docs/search-index/build",
     "docs-serve": "cd docs && npx serve",
diff --git a/test/coverage/report.sh b/test/coverage/report.sh
deleted file mode 100755
index 1c0b5459..00000000
--- a/test/coverage/report.sh
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/bin/sh
-
-CPPFLAGS="--coverage" LDFLAGS="--coverage" npm rebuild
-npm test
-geninfo --no-external --base-directory src --output-file coverage/sharp.info build/Release/obj.target/sharp/src
-genhtml --title sharp --demangle-cpp --output-directory coverage/sharp coverage/*.info
diff --git a/test/unit/text.js b/test/unit/text.js
index d3803605..b8c80af9 100644
--- a/test/unit/text.js
+++ b/test/unit/text.js
@@ -175,12 +175,13 @@ describe('Text to image', () => {
   });
 
   it('fontfile input', function () {
-    // Added for code coverage
-    sharp({
-      text: {
-        text: 'text',
-        fontfile: 'UnknownFont.ttf'
-      }
+    assert.doesNotThrow(function () {
+      sharp({
+        text: {
+          text: 'text',
+          fontfile: 'UnknownFont.ttf'
+        }
+      });
     });
   });