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 3455498..60667ae 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
@@ -3,6 +3,10 @@ apply plugin: "gemfire-server"
 apply plugin: "application"
 apply from: IDE_GRADLE
 
+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 112b2a3..9cd8792 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
@@ -1,6 +1,10 @@
 apply plugin: 'io.spring.convention.spring-sample-war'
 apply from: IDE_GRADLE
 
+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 7da0b35..6c791d4 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
@@ -3,6 +3,10 @@ apply plugin: "gemfire-server"
 apply plugin: "application"
 apply from: IDE_GRADLE
 
+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 112b2a3..9cd8792 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
@@ -1,6 +1,10 @@
 apply plugin: 'io.spring.convention.spring-sample-war'
 apply from: IDE_GRADLE
 
+repositories {
+	gradlePluginPortal()
+}
+
 dependencies {
 
 	compile project(':spring-session-data-geode')