diff --git a/packages/collection/src/collection.ts b/packages/collection/src/collection.ts
index 574e22a27f9e..3d7228a959c1 100644
--- a/packages/collection/src/collection.ts
+++ b/packages/collection/src/collection.ts
@@ -83,7 +83,7 @@ export class Collection<Key, Value> extends Map<Key, Value> {
 	public first(): Value | undefined;
 	public first(amount: number): Value[];
 	public first(amount?: number): Value | Value[] | undefined {
-		if (amount === undefined) return this.values().next().value;
+		if (amount === undefined) return this.values().next().value as Value | undefined;
 		if (amount < 0) return this.last(amount * -1);
 		amount = Math.min(this.size, amount);
 		const iter = this.values();
@@ -100,7 +100,7 @@ export class Collection<Key, Value> extends Map<Key, Value> {
 	public firstKey(): Key | undefined;
 	public firstKey(amount: number): Key[];
 	public firstKey(amount?: number): Key | Key[] | undefined {
-		if (amount === undefined) return this.keys().next().value;
+		if (amount === undefined) return this.keys().next().value as Key | undefined;
 		if (amount < 0) return this.lastKey(amount * -1);
 		amount = Math.min(this.size, amount);
 		const iter = this.keys();