diff --git a/build.gradle b/build.gradle
index 4196b92..224c5a1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,9 +9,9 @@ repositories {
 }
 
 ext {
-    set('connectApi', '2.8.0')
-    set('slf4jSimple', '1.7.30')
-    set('jsonPath', '2.6.0')
+    set('connectApi', '3.8.0')
+    set('slf4jSimple', '2.0.16')
+    set('jsonPath', '2.9.0')
 }
 
 dependencies {
diff --git a/src/main/java/com/kakao/connector/kafka/KafkaSinkTask.java b/src/main/java/com/kakao/connector/kafka/KafkaSinkTask.java
index b02f0ec..f952fa4 100644
--- a/src/main/java/com/kakao/connector/kafka/KafkaSinkTask.java
+++ b/src/main/java/com/kakao/connector/kafka/KafkaSinkTask.java
@@ -90,11 +90,12 @@ public void put(Collection<SinkRecord> records) {
                 if (record.value() != null) {
                     try {
                         String value = record.value().toString();
+                        String key = record.key() != null ? record.key().toString() : null;
                         boolean samplingCondition = Math.random() < samplingPercentage;
                         if (samplingCondition
                                 && isFilteringMatch(value)
                         ) {
-                            sendRecord(value);
+                            sendRecord(key,value);
                         }
                     } catch (Exception e) {
                         log.error(e.getMessage() + " / " + connectorName, e);
@@ -106,8 +107,9 @@ && isFilteringMatch(value)
                 if (record.value() != null) {
                     try {
                         String value = record.value().toString();
+                        String key = record.key() != null ? record.key().toString() : null;
                         if (isFilteringMatch(value)) {
-                            sendRecord(value);
+                            sendRecord(key,value);
                         }
                     } catch (Exception e) {
                         log.error(e.getMessage() + " / " + connectorName, e);
@@ -117,13 +119,14 @@ && isFilteringMatch(value)
         }
     }
 
-    private void sendRecord(String value) {
-        ProducerRecord<String, String> sendRecord = getSinkRecord(value);
+    private void sendRecord(String key , String value) {
+        ProducerRecord<String, String> sendRecord = getSinkRecord(key,value);
         producer.send(sendRecord, new ProducerCallback());
     }
 
-    private ProducerRecord<String, String> getSinkRecord(String value) {
-        String messageKey = keyParsingEnabled ? parsingMessageKey(value) : null;
+    private ProducerRecord<String, String> getSinkRecord(String key , String value) {
+        String messageKey = (keyParsingEnabled && key == null) ? parsingMessageKey(value) : key;
+
         if (timestampParsingEnabled) {
             return new ProducerRecord<>(sinkTopic, null, parsingTimestamp(value), messageKey, value);
         } else {