diff --git a/.nycrc.json b/.nycrc.json
deleted file mode 100644
index dfeb6da..0000000
--- a/.nycrc.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "exclude": ["**/*.test.*", "**/test-helpers/**"]
-}
diff --git a/package.json b/package.json
index 1231d5d..074f50c 100644
--- a/package.json
+++ b/package.json
@@ -65,7 +65,7 @@
     "lint-staged": "^9.4.2",
     "node-fetch": "^2.6.0",
     "prettier": "^1.18.2",
-    "tap": "^14.6.9"
+    "tap": "^14.9.2"
   },
   "scripts": {
     "prepare": "npm run prepare:clean && npm run prepare:mjs && npm run prepare:js && npm run prepare:jsdoc && npm run prepare:prettier",
@@ -77,7 +77,7 @@
     "test": "npm run test:eslint && npm run test:prettier && npm run test:tap",
     "test:eslint": "eslint . --ext mjs,js",
     "test:prettier": "prettier '**/*.{json,yml,md}' -l",
-    "test:tap": "tap --test-ignore=src --100",
+    "test:tap": "tap --test-ignore=src --100 --nyc-arg=--exclude='**/test-helpers/**'",
     "prepublishOnly": "npm test"
   }
 }
diff --git a/src/test-helpers/startServer.mjs b/src/test-helpers/startServer.mjs
index c34a820..725a0e5 100644
--- a/src/test-helpers/startServer.mjs
+++ b/src/test-helpers/startServer.mjs
@@ -11,7 +11,6 @@
 export const startServer = (t, app) =>
   new Promise((resolve, reject) => {
     app.listen(undefined, 'localhost', function(error) {
-      // istanbul ignore next
       if (error) reject(error)
       else {
         t.tearDown(() => this.close())