diff --git a/integration-test/aws-api-ec2/project/plugins.sbt b/integration-test/aws-api-ec2/project/plugins.sbt
index aec5d8d5..681004c4 100644
--- a/integration-test/aws-api-ec2/project/plugins.sbt
+++ b/integration-test/aws-api-ec2/project/plugins.sbt
@@ -1 +1,10 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * license agreements; and to You under the Apache License, version 2.0:
+ *
+ *   https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * This file is part of the Apache Pekko project, which was derived from Akka.
+ */
+
 addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.3.2")
diff --git a/integration-test/dns-api-mesos/project/build.properties b/integration-test/dns-api-mesos/project/build.properties
index 406a7d25..52413ab7 100644
--- a/integration-test/dns-api-mesos/project/build.properties
+++ b/integration-test/dns-api-mesos/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.16
\ No newline at end of file
+sbt.version=1.9.3
diff --git a/integration-test/dns-api-mesos/project/plugins.sbt b/integration-test/dns-api-mesos/project/plugins.sbt
index f5c1302f..6ac7405a 100644
--- a/integration-test/dns-api-mesos/project/plugins.sbt
+++ b/integration-test/dns-api-mesos/project/plugins.sbt
@@ -1,3 +1,12 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * license agreements; and to You under the Apache License, version 2.0:
+ *
+ *   https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * This file is part of the Apache Pekko project, which was derived from Akka.
+ */
+
 addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.3.2")
 
 addSbtPlugin("com.dwijnand" % "sbt-dynver" % "2.0.0")
diff --git a/integration-test/kubernetes-api-java/project/build.properties b/integration-test/kubernetes-api-java/project/build.properties
index 8b697bbb..52413ab7 100644
--- a/integration-test/kubernetes-api-java/project/build.properties
+++ b/integration-test/kubernetes-api-java/project/build.properties
@@ -1 +1 @@
-sbt.version=1.1.0
+sbt.version=1.9.3
diff --git a/integration-test/kubernetes-api/project/build.properties b/integration-test/kubernetes-api/project/build.properties
index 8b697bbb..52413ab7 100644
--- a/integration-test/kubernetes-api/project/build.properties
+++ b/integration-test/kubernetes-api/project/build.properties
@@ -1 +1 @@
-sbt.version=1.1.0
+sbt.version=1.9.3
diff --git a/integration-test/kubernetes-dns/project/build.properties b/integration-test/kubernetes-dns/project/build.properties
index 8b697bbb..52413ab7 100644
--- a/integration-test/kubernetes-dns/project/build.properties
+++ b/integration-test/kubernetes-dns/project/build.properties
@@ -1 +1 @@
-sbt.version=1.1.0
+sbt.version=1.9.3
diff --git a/integration-test/marathon-api-docker/project/build.properties b/integration-test/marathon-api-docker/project/build.properties
index 406a7d25..52413ab7 100644
--- a/integration-test/marathon-api-docker/project/build.properties
+++ b/integration-test/marathon-api-docker/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.16
\ No newline at end of file
+sbt.version=1.9.3
diff --git a/integration-test/marathon-api-docker/project/plugins.sbt b/integration-test/marathon-api-docker/project/plugins.sbt
index aec5d8d5..681004c4 100644
--- a/integration-test/marathon-api-docker/project/plugins.sbt
+++ b/integration-test/marathon-api-docker/project/plugins.sbt
@@ -1 +1,10 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * license agreements; and to You under the Apache License, version 2.0:
+ *
+ *   https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * This file is part of the Apache Pekko project, which was derived from Akka.
+ */
+
 addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.3.2")
diff --git a/integration-test/marathon-api/project/build.properties b/integration-test/marathon-api/project/build.properties
index 406a7d25..52413ab7 100644
--- a/integration-test/marathon-api/project/build.properties
+++ b/integration-test/marathon-api/project/build.properties
@@ -1 +1 @@
-sbt.version=0.13.16
\ No newline at end of file
+sbt.version=1.9.3
diff --git a/integration-test/marathon-api/project/plugins.sbt b/integration-test/marathon-api/project/plugins.sbt
index aec5d8d5..681004c4 100644
--- a/integration-test/marathon-api/project/plugins.sbt
+++ b/integration-test/marathon-api/project/plugins.sbt
@@ -1 +1,10 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * license agreements; and to You under the Apache License, version 2.0:
+ *
+ *   https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * This file is part of the Apache Pekko project, which was derived from Akka.
+ */
+
 addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.3.2")
diff --git a/lease-kubernetes/src/it/scala/org/apache/pekko/coordination/lease/kubernetes/KubernetesApiIntegrationTest.scala b/lease-kubernetes/src/it/scala/org/apache/pekko/coordination/lease/kubernetes/KubernetesApiIntegrationTest.scala
index 98c0473d..6ae33a55 100644
--- a/lease-kubernetes/src/it/scala/org/apache/pekko/coordination/lease/kubernetes/KubernetesApiIntegrationTest.scala
+++ b/lease-kubernetes/src/it/scala/org/apache/pekko/coordination/lease/kubernetes/KubernetesApiIntegrationTest.scala
@@ -1,3 +1,12 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * license agreements; and to You under the Apache License, version 2.0:
+ *
+ *   https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * This file is part of the Apache Pekko project, which was derived from Akka.
+ */
+
 package org.apache.pekko.coordination.lease.kubernetes
 
 import org.apache.pekko
diff --git a/lease-kubernetes/src/it/scala/org/apache/pekko/coordination/lease/kubernetes/LeaseContentionSpec.scala b/lease-kubernetes/src/it/scala/org/apache/pekko/coordination/lease/kubernetes/LeaseContentionSpec.scala
index 6811ff8c..5f794e57 100644
--- a/lease-kubernetes/src/it/scala/org/apache/pekko/coordination/lease/kubernetes/LeaseContentionSpec.scala
+++ b/lease-kubernetes/src/it/scala/org/apache/pekko/coordination/lease/kubernetes/LeaseContentionSpec.scala
@@ -1,3 +1,12 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * license agreements; and to You under the Apache License, version 2.0:
+ *
+ *   https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * This file is part of the Apache Pekko project, which was derived from Akka.
+ */
+
 package org.apache.pekko.coordination.lease.kubernetes
 
 import java.util.concurrent.Executors