diff --git a/spring-boot-2-demo-app/build.gradle.kts b/spring-boot-2-demo-app/build.gradle.kts
index c5d1418d..8c987f60 100644
--- a/spring-boot-2-demo-app/build.gradle.kts
+++ b/spring-boot-2-demo-app/build.gradle.kts
@@ -1,7 +1,7 @@
 plugins {
     id("sb-ot-demo.java-conventions")
     id("sb-ot-demo.docker")
-    id("org.springframework.boot") version "2.7.18"
+    id("org.springframework.boot") version "3.3.4"
     id("io.freefair.lombok")
 }
 
diff --git a/spring-boot-3-demo-app/build.gradle.kts b/spring-boot-3-demo-app/build.gradle.kts
index aafec910..4f46297e 100644
--- a/spring-boot-3-demo-app/build.gradle.kts
+++ b/spring-boot-3-demo-app/build.gradle.kts
@@ -1,7 +1,7 @@
 plugins {
     id("sb-ot-demo.java-conventions")
     id("sb-ot-demo.docker")
-    id("org.springframework.boot") version "3.3.2"
+    id("org.springframework.boot") version "3.3.4"
     id("io.freefair.lombok")
 }