diff --git a/external/java-pcap.jar b/external/java-pcap.jar
index 1068428..cc7c23b 100644
Binary files a/external/java-pcap.jar and b/external/java-pcap.jar differ
diff --git a/silabs-pti/.classpath b/silabs-pti/.classpath
index 82b5803..2856ebc 100644
--- a/silabs-pti/.classpath
+++ b/silabs-pti/.classpath
@@ -26,7 +26,7 @@
 			<attribute name="test" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17/"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-21/"/>
 	<classpathentry kind="con" path="org.eclipse.buildship.core.gradleclasspathcontainer"/>
 	<classpathentry combineaccessrules="false" kind="src" path="/pcap"/>
 	<classpathentry kind="output" path="bin/default"/>
diff --git a/silabs-pti/.settings/org.eclipse.jdt.core.prefs b/silabs-pti/.settings/org.eclipse.jdt.core.prefs
index 70204c6..c78777c 100644
--- a/silabs-pti/.settings/org.eclipse.jdt.core.prefs
+++ b/silabs-pti/.settings/org.eclipse.jdt.core.prefs
@@ -11,9 +11,9 @@ org.eclipse.jdt.core.compiler.annotation.nullable.secondary=
 org.eclipse.jdt.core.compiler.annotation.nullanalysis=disabled
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
 org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=17
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=21
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=17
+org.eclipse.jdt.core.compiler.compliance=21
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
@@ -115,7 +115,7 @@ org.eclipse.jdt.core.compiler.problem.unusedTypeParameter=ignore
 org.eclipse.jdt.core.compiler.problem.unusedWarningToken=warning
 org.eclipse.jdt.core.compiler.problem.varargsArgumentNeedCast=warning
 org.eclipse.jdt.core.compiler.release=enabled
-org.eclipse.jdt.core.compiler.source=17
+org.eclipse.jdt.core.compiler.source=21
 org.eclipse.jdt.core.formatter.align_assignment_statements_on_columns=false
 org.eclipse.jdt.core.formatter.align_fields_grouping_blank_lines=2147483647
 org.eclipse.jdt.core.formatter.align_selector_in_method_invocation_on_expression_first_line=false
diff --git a/silabs-pti/build.gradle b/silabs-pti/build.gradle
index 5d36d49..09333c8 100644
--- a/silabs-pti/build.gradle
+++ b/silabs-pti/build.gradle
@@ -27,6 +27,9 @@ repositories {
 java {
   withJavadocJar()
   withSourcesJar()
+  toolchain {
+    languageVersion = JavaLanguageVersion.of(11)
+  }   
 }
 
 dependencies {
diff --git a/sonar-project.properties b/sonar-project.properties
new file mode 100644
index 0000000..ff0d006
--- /dev/null
+++ b/sonar-project.properties
@@ -0,0 +1,7 @@
+sonar.projectKey=java-pti
+sonar.projectName=Java PTI - open source
+sonar.language=java
+
+sonar.sources=./silabs-pti/src/main
+sonar.tests=./silabs-pti/src/test
+sonar.java.binaries=**/build/**