diff --git a/package.json b/package.json
index 3baf47eb..31f7396f 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "@types/merge2": "^1.1.4",
     "@types/micromatch": "^4.0.0",
     "@types/mocha": "^5.2.7",
-    "@types/node": "^12.7.8",
+    "@types/node": "^14.18.53",
     "@types/picomatch": "^2.3.0",
     "@types/sinon": "^7.5.0",
     "bencho": "^0.1.1",
diff --git a/src/benchmark/suites/product/stream.ts b/src/benchmark/suites/product/stream.ts
index f1259bf5..15705af5 100644
--- a/src/benchmark/suites/product/stream.ts
+++ b/src/benchmark/suites/product/stream.ts
@@ -21,9 +21,9 @@ class Glob {
 		});
 
 		const action = new Promise<string[]>((resolve, reject) => {
-			stream.once('error', (error) => reject(error));
+			stream.on('error', (error) => reject(error));
 			stream.on('data', (entry: string) => entries.push(entry));
-			stream.once('end', () => resolve(entries));
+			stream.on('end', () => resolve(entries));
 		});
 
 		await this._measure(() => action);
diff --git a/src/settings.ts b/src/settings.ts
index 3000541a..8cc9d681 100644
--- a/src/settings.ts
+++ b/src/settings.ts
@@ -185,6 +185,9 @@ export default class Settings {
 		if (this.stats) {
 			this.objectMode = true;
 		}
+
+		// Remove the cast to the array in the next major (#404).
+		this.ignore = ([] as Pattern[]).concat(this.ignore);
 	}
 
 	private _getValue<T>(option: T | undefined, value: T): T {