diff --git a/packages/nodes-base/nodes/MongoDb/MongoDb.node.ts b/packages/nodes-base/nodes/MongoDb/MongoDb.node.ts
index 00dfe9f3a7..30eefb02b1 100644
--- a/packages/nodes-base/nodes/MongoDb/MongoDb.node.ts
+++ b/packages/nodes-base/nodes/MongoDb/MongoDb.node.ts
@@ -160,6 +160,7 @@ export class MongoDb implements INodeType {
 			throw new Error(`The operation "${operation}" is not supported!`);
 		}
 
+		client.close();
 		return this.prepareOutputData(returnItems);
 	}
 }