diff --git a/guest/remote-debugging/pom.xml b/guest/remote-debugging/pom.xml
index 137e00b719..07b9cc49d8 100644
--- a/guest/remote-debugging/pom.xml
+++ b/guest/remote-debugging/pom.xml
@@ -39,7 +39,6 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <spring-boot.version>1.5.8.RELEASE</spring-boot.version>
     </properties>
 
 </project>
diff --git a/guest/slf4j/guide/pom.xml b/guest/slf4j/guide/pom.xml
index 29aa54b426..657ede73b6 100644
--- a/guest/slf4j/guide/pom.xml
+++ b/guest/slf4j/guide/pom.xml
@@ -59,6 +59,5 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <java.version>1.8</java.version>
         <powermock.version>2.0.0-beta.5</powermock.version>
-        <spring-boot.version>2.0.6.RELEASE</spring-boot.version>
     </properties>
 </project>
diff --git a/guest/spring-boot-app/pom.xml b/guest/spring-boot-app/pom.xml
index 0f0c37cb7c..423dadbb99 100644
--- a/guest/spring-boot-app/pom.xml
+++ b/guest/spring-boot-app/pom.xml
@@ -70,7 +70,6 @@
         <tomcat.version>8.0.43</tomcat.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <java.version>1.8</java.version>
-        <spring-boot.version>1.5.3.RELEASE</spring-boot.version>
     </properties>
 
 </project>
diff --git a/guest/spring-mvc/pom.xml b/guest/spring-mvc/pom.xml
index 991fa59d58..3bffb1530d 100644
--- a/guest/spring-mvc/pom.xml
+++ b/guest/spring-mvc/pom.xml
@@ -30,7 +30,6 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-        <spring-boot.version>2.0.0.RELEASE</spring-boot.version>
     </properties>
 
 </project>
diff --git a/guest/spring-security/pom.xml b/guest/spring-security/pom.xml
index a184693127..8be42ba32b 100644
--- a/guest/spring-security/pom.xml
+++ b/guest/spring-security/pom.xml
@@ -48,7 +48,6 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <thymeleaf-spring5.version>3.0.8.RELEASE</thymeleaf-spring5.version>
-        <spring-boot.version>2.0.0.RELEASE</spring-boot.version>
     </properties>
 
 </project>
\ No newline at end of file
diff --git a/guest/webservices/spring-rest-service/pom.xml b/guest/webservices/spring-rest-service/pom.xml
index c86fdfd829..fcec8a3e12 100644
--- a/guest/webservices/spring-rest-service/pom.xml
+++ b/guest/webservices/spring-rest-service/pom.xml
@@ -49,7 +49,6 @@
         <java.version>1.8</java.version>
         <springfox-swagger2.version>2.7.0</springfox-swagger2.version>
         <springfox-swagger-ui.version>2.7.0</springfox-swagger-ui.version>
-        <spring-boot.version>1.5.4.RELEASE</spring-boot.version>
     </properties>
 
 </project>
\ No newline at end of file