diff --git a/gpcc-mocks/build.gradle b/gpcc-mocks/build.gradle
index 6a8168a2..822e6e18 100644
--- a/gpcc-mocks/build.gradle
+++ b/gpcc-mocks/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-	id 'org.springframework.boot' version '3.5.7'
+	id 'org.springframework.boot' version '4.0.6'
 	id 'io.spring.dependency-management' version '1.1.7'
 	id 'java'
 }