diff --git a/crt/deployment/src/main/java/io/quarkiverse/amazonservices/aws/crt/deployment/AwsCrtProcessor.java b/crt/deployment/src/main/java/io/quarkiverse/amazonservices/aws/crt/deployment/AwsCrtProcessor.java
index a54841d5f..60ceed5fe 100644
--- a/crt/deployment/src/main/java/io/quarkiverse/amazonservices/aws/crt/deployment/AwsCrtProcessor.java
+++ b/crt/deployment/src/main/java/io/quarkiverse/amazonservices/aws/crt/deployment/AwsCrtProcessor.java
@@ -363,6 +363,12 @@ public void registerAwsCrtJniRuntimeAccessBuildItem(
         jniRuntimeAccessMethod.produce(new JniRuntimeAccessMethodBuildItem(
                 "software.amazon.awssdk.crt.mqtt.MqttClientConnection", "onWebsocketHandshake",
                 "software.amazon.awssdk.crt.http.HttpRequest", "long"));
+        jniRuntimeAccessMethod.produce(new JniRuntimeAccessMethodBuildItem(
+                "software.amazon.awssdk.crt.mqtt.MqttClientConnection", "onConnectionSuccess",
+                "boolean"));
+        jniRuntimeAccessMethod.produce(new JniRuntimeAccessMethodBuildItem(
+                "software.amazon.awssdk.crt.mqtt.MqttClientConnection", "onConnectionFailure",
+                "int"));
         jniRuntimeAccessMethod.produce(new JniRuntimeAccessMethodBuildItem(
                 "software.amazon.awssdk.crt.mqtt.MqttClientConnection$MessageHandler", "deliver",
                 "java.lang.String", "byte[]", "boolean", "int", "boolean"));
diff --git a/pom.xml b/pom.xml
index c401042c6..b051ef0e6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -48,7 +48,7 @@
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
     <quarkus.version>3.3.0</quarkus.version>
     <awssdk.version>2.20.143</awssdk.version>
-    <awscrt.version>0.26.0</awscrt.version>
+    <awscrt.version>0.27.3</awscrt.version>
   </properties>
   <build>
     <pluginManagement>