diff --git a/labs/unicorn-stock-broker/pom.xml b/labs/unicorn-stock-broker/pom.xml
index 3b719928..132adc3c 100644
--- a/labs/unicorn-stock-broker/pom.xml
+++ b/labs/unicorn-stock-broker/pom.xml
@@ -4,7 +4,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>4.0.3</version>
+        <version>4.0.4</version>
     </parent>
     <groupId>com.unicorn</groupId>
     <artifactId>UnicornStockBroker</artifactId>
diff --git a/labs/unicorn-store/software/alternatives/unicorn-audit-service/pom.xml b/labs/unicorn-store/software/alternatives/unicorn-audit-service/pom.xml
index 5bbb482d..02b5b90a 100644
--- a/labs/unicorn-store/software/alternatives/unicorn-audit-service/pom.xml
+++ b/labs/unicorn-store/software/alternatives/unicorn-audit-service/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>4.0.3</version>
+        <version>4.0.4</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>
     <groupId>com.unicorn</groupId>
diff --git a/labs/unicorn-store/software/alternatives/unicorn-store-spring-graalvm/pom.xml b/labs/unicorn-store/software/alternatives/unicorn-store-spring-graalvm/pom.xml
index f68099f3..7ed00822 100644
--- a/labs/unicorn-store/software/alternatives/unicorn-store-spring-graalvm/pom.xml
+++ b/labs/unicorn-store/software/alternatives/unicorn-store-spring-graalvm/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>4.0.3</version>
+        <version>4.0.4</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>
     <groupId>com.unicorn</groupId>
diff --git a/labs/unicorn-store/software/unicorn-store-spring/pom.xml b/labs/unicorn-store/software/unicorn-store-spring/pom.xml
index f3d92d00..48d7540f 100644
--- a/labs/unicorn-store/software/unicorn-store-spring/pom.xml
+++ b/labs/unicorn-store/software/unicorn-store-spring/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>4.0.3</version>
+        <version>4.0.4</version>
     </parent>
 
     <groupId>com.unicorn</groupId>