diff --git a/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/Worker.java b/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/Worker.java
index 45c7d9f6d13a9..582271a196335 100644
--- a/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/Worker.java
+++ b/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/Worker.java
@@ -648,6 +648,8 @@ static Map<String, Object> producerConfigs(ConnectorTaskId id,
         // These settings will execute infinite retries on retriable exceptions. They *may* be overridden via configs passed to the worker,
         // but this may compromise the delivery guarantees of Kafka Connect.
         producerProps.put(ProducerConfig.MAX_BLOCK_MS_CONFIG, Long.toString(Long.MAX_VALUE));
+        producerProps.put(ProducerConfig.ACKS_CONFIG, "all");
+        producerProps.put(ProducerConfig.MAX_IN_FLIGHT_REQUESTS_PER_CONNECTION, "1");
         producerProps.put(ProducerConfig.DELIVERY_TIMEOUT_MS_CONFIG, Integer.toString(Integer.MAX_VALUE));
         producerProps.put(ProducerConfig.CLIENT_ID_CONFIG, defaultClientId);
         // User-specified overrides
diff --git a/connect/runtime/src/test/java/org/apache/kafka/connect/runtime/WorkerTest.java b/connect/runtime/src/test/java/org/apache/kafka/connect/runtime/WorkerTest.java
index e57e5e33fea85..2b210794207aa 100644
--- a/connect/runtime/src/test/java/org/apache/kafka/connect/runtime/WorkerTest.java
+++ b/connect/runtime/src/test/java/org/apache/kafka/connect/runtime/WorkerTest.java
@@ -213,6 +213,8 @@ public void setup() {
         defaultProducerConfigs.put(
             ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, "org.apache.kafka.common.serialization.ByteArraySerializer");
         defaultProducerConfigs.put(ProducerConfig.MAX_BLOCK_MS_CONFIG, Long.toString(Long.MAX_VALUE));
+        defaultProducerConfigs.put(ProducerConfig.ACKS_CONFIG, "all");
+        defaultProducerConfigs.put(ProducerConfig.MAX_IN_FLIGHT_REQUESTS_PER_CONNECTION, "1");
         defaultProducerConfigs.put(ProducerConfig.DELIVERY_TIMEOUT_MS_CONFIG, Integer.toString(Integer.MAX_VALUE));
 
         defaultConsumerConfigs.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, "localhost:9092");