diff --git a/labs/unicorn-stock-broker/pom.xml b/labs/unicorn-stock-broker/pom.xml
index ff2d72a81..0425c89cb 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>3.3.6</version>
+        <version>3.4.0</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 22fbe651a..6c9abcc55 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>3.3.6</version>
+        <version>3.4.0</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 864bbdc1b..c894718f8 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>3.3.6</version>
+        <version>3.4.0</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 50d707374..a24276783 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>3.3.6</version>
+        <version>3.4.0</version>
     </parent>
 
     <groupId>com.unicorn</groupId>