diff --git a/README.md b/README.md
index b1de08f..b5c4e87 100644
--- a/README.md
+++ b/README.md
@@ -35,10 +35,10 @@ Maintainers will also be in charge of both versioning and publishing future rele
 The Humio HEC connector uses maven to build and test itself.  The version of Kafka to build for is indicated in the `pom.xml` file by the line:
 
 ```
-<kafka.version>2.2.0</kafka.version>
+<kafka.version>3.1.1</kafka.version>
 ```
 
-Out of the box, Kafka 2.2.0 is supported.  This can (and should) be changed to match your current Kafka or Confluent Platform version; to check which version this is, refer to the [Confluent Platform Versions](https://docs.confluent.io/current/installation/versions-interoperability.html) page.
+Out of the box, Kafka 3.1.1 is supported.  This can (and should) be changed to match your current Kafka or Confluent Platform version; to check which version this is, refer to the [Confluent Platform Versions](https://docs.confluent.io/current/installation/versions-interoperability.html) page.
 
 Scripts are provided to automatically build and package the connector jar.  `bin/compile.sh` automatically compiles and packages the connector, with the resulting "uber jar" located at `target/kafka-connect-hec-sink-1.0-SNAPSHOT-jar-with-dependencies.jar`.  Alternatively, you can run:
 
diff --git a/pom.xml b/pom.xml
index 7558776..c49c551 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,14 +4,14 @@
 
     <groupId>com.humio.kafka.connect.hec</groupId>
     <artifactId>kafka-connect-hec-sink</artifactId>
-    <version>1.1.4</version>
+    <version>1.1.5</version>
     <packaging>jar</packaging>
 
     <name>kafka-connect-hec-sink</name>
     <description>A Kafka Connect sink for HEC</description>
 
     <properties>
-        <kafka.version>2.2.0</kafka.version>
+        <kafka.version>3.1.1</kafka.version>
         <metrics.version>4.2.4</metrics.version>
         <junit.jupiter.version>5.8.2</junit.jupiter.version>
         <junit.vintage.version>5.8.2</junit.vintage.version>
@@ -28,7 +28,7 @@
         <nexus.staging.maven.plugin.version>1.6.8</nexus.staging.maven.plugin.version>
         <mvn.failsafe.plugin.version>2.22.1</mvn.failsafe.plugin.version>
         <jackson.version>2.13.0</jackson.version>
-        <confluent.interceptors.version>5.2.1</confluent.interceptors.version>
+        <confluent.interceptors.version>7.2.1</confluent.interceptors.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
@@ -194,6 +194,16 @@
             <version>${avro.version}</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.codehaus.plexus</groupId>
+            <artifactId>plexus-utils</artifactId>
+            <version>3.4.2</version>
+        </dependency>
+        <dependency>
+            <groupId>commons-codec</groupId>
+            <artifactId>commons-codec</artifactId>
+            <version>1.15</version>
+        </dependency>
     </dependencies>
 
     <build>
diff --git a/src/test/resources/docker/docker-compose.yml b/src/test/resources/docker/docker-compose.yml
index d2826c8..20208ca 100644
--- a/src/test/resources/docker/docker-compose.yml
+++ b/src/test/resources/docker/docker-compose.yml
@@ -55,7 +55,7 @@ services:
       SCHEMA_REGISTRY_KAFKASTORE_CONNECTION_URL: 'zookeeper:12181'
 
   kafkaconnect:
-    image: confluentinc/cp-kafka-connect:5.2.0
+    image: confluentinc/cp-kafka-connect:5.4.9
     hostname: kafkaconnect
     depends_on:
       - zookeeper
@@ -64,7 +64,7 @@ services:
     ports:
       - "18083:18083"
     volumes:
-      - ../../../../target/kafka-connect-hec-sink-1.1.4-jar-with-dependencies.jar:/etc/kafka-connect/jars/kafka-connect-hec-sink/kafka-connect-hec-sink-1.0-SNAPSHOT-jar-with-dependencies.jar
+      - ../../../../target/kafka-connect-hec-sink-1.1.5-jar-with-dependencies.jar:/etc/kafka-connect/jars/kafka-connect-hec-sink/kafka-connect-hec-sink-1.0-SNAPSHOT-jar-with-dependencies.jar
     environment:
       CONNECT_BOOTSTRAP_SERVERS: 'kafkabroker:19092'
       CONNECT_REST_ADVERTISED_HOST_NAME: kafkaconnect