diff --git a/samples/javaconfig/gemfire-clientserver/spring-session-sample-javaconfig-gemfire-clientserver.gradle b/samples/javaconfig/gemfire-clientserver/spring-session-sample-javaconfig-gemfire-clientserver.gradle
index 7ce2327..d656170 100644
--- a/samples/javaconfig/gemfire-clientserver/spring-session-sample-javaconfig-gemfire-clientserver.gradle
+++ b/samples/javaconfig/gemfire-clientserver/spring-session-sample-javaconfig-gemfire-clientserver.gradle
@@ -1,23 +1,11 @@
-/*
- * Copyright 2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 apply plugin: 'io.spring.convention.spring-sample-war'
 apply plugin: "gemfire-server"
 apply plugin: "application"
 
+repositories {
+	gradlePluginPortal()
+}
+
 dependencies {
 
 	compile project(':spring-session-data-geode')
diff --git a/samples/javaconfig/gemfire-p2p/spring-session-sample-javaconfig-gemfire-p2p.gradle b/samples/javaconfig/gemfire-p2p/spring-session-sample-javaconfig-gemfire-p2p.gradle
index e21923e..98d72ff 100644
--- a/samples/javaconfig/gemfire-p2p/spring-session-sample-javaconfig-gemfire-p2p.gradle
+++ b/samples/javaconfig/gemfire-p2p/spring-session-sample-javaconfig-gemfire-p2p.gradle
@@ -1,21 +1,9 @@
-/*
- * Copyright 2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
 apply plugin: 'io.spring.convention.spring-sample-war'
 
+repositories {
+	gradlePluginPortal()
+}
+
 dependencies {
 
 	compile project(':spring-session-data-geode')
diff --git a/samples/xml/gemfire-clientserver/spring-session-sample-xml-gemfire-clientserver.gradle b/samples/xml/gemfire-clientserver/spring-session-sample-xml-gemfire-clientserver.gradle
index 029fb14..d656170 100644
--- a/samples/xml/gemfire-clientserver/spring-session-sample-xml-gemfire-clientserver.gradle
+++ b/samples/xml/gemfire-clientserver/spring-session-sample-xml-gemfire-clientserver.gradle
@@ -2,6 +2,10 @@ apply plugin: 'io.spring.convention.spring-sample-war'
 apply plugin: "gemfire-server"
 apply plugin: "application"
 
+repositories {
+	gradlePluginPortal()
+}
+
 dependencies {
 
 	compile project(':spring-session-data-geode')
diff --git a/samples/xml/gemfire-p2p/spring-session-sample-xml-gemfire-p2p.gradle b/samples/xml/gemfire-p2p/spring-session-sample-xml-gemfire-p2p.gradle
index 2b20144..98d72ff 100644
--- a/samples/xml/gemfire-p2p/spring-session-sample-xml-gemfire-p2p.gradle
+++ b/samples/xml/gemfire-p2p/spring-session-sample-xml-gemfire-p2p.gradle
@@ -1,5 +1,9 @@
 apply plugin: 'io.spring.convention.spring-sample-war'
 
+repositories {
+	gradlePluginPortal()
+}
+
 dependencies {
 
 	compile project(':spring-session-data-geode')