diff --git a/eureka/pom.xml b/eureka/pom.xml
index 387990c..a67eb1e 100644
--- a/eureka/pom.xml
+++ b/eureka/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.7.18</version>
+		<version>4.0.3</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.codecool</groupId>
diff --git a/javapassword/pom.xml b/javapassword/pom.xml
index d653f4d..bb870cb 100644
--- a/javapassword/pom.xml
+++ b/javapassword/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.7.18</version>
+		<version>4.0.3</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.codecool</groupId>
diff --git a/userservice/pom.xml b/userservice/pom.xml
index cef4142..134d6fa 100644
--- a/userservice/pom.xml
+++ b/userservice/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.7.18</version>
+		<version>4.0.3</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.codecool</groupId>
diff --git a/zuul/pom.xml b/zuul/pom.xml
index a899587..279a8d1 100644
--- a/zuul/pom.xml
+++ b/zuul/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.7.18</version>
+		<version>4.0.3</version>
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.codecool</groupId>