diff --git a/contentgrid-helm-client/build.gradle b/contentgrid-helm-client/build.gradle
index 760c658..ec13bcb 100644
--- a/contentgrid-helm-client/build.gradle
+++ b/contentgrid-helm-client/build.gradle
@@ -16,7 +16,7 @@ repositories {
 }
 
 dependencies {
-    implementation platform("org.springframework.boot:spring-boot-dependencies:3.5.11")
+    implementation platform("org.springframework.boot:spring-boot-dependencies:4.0.3")
     implementation platform("io.fabric8:kubernetes-client-bom:7.6.1")
 
     implementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-yaml'
diff --git a/contentgrid-junit-jupiter-k8s/build.gradle b/contentgrid-junit-jupiter-k8s/build.gradle
index 86ae542..f302abf 100644
--- a/contentgrid-junit-jupiter-k8s/build.gradle
+++ b/contentgrid-junit-jupiter-k8s/build.gradle
@@ -12,7 +12,7 @@ tasks.register("testResourcesJar", Jar) {
 }
 
 dependencies {
-    implementation platform("org.springframework.boot:spring-boot-dependencies:3.5.11")
+    implementation platform("org.springframework.boot:spring-boot-dependencies:4.0.3")
     implementation platform("io.fabric8:kubernetes-client-bom:7.6.1")
 
     implementation project(':contentgrid-helm-client')
diff --git a/contentgrid-testcontainers-k3s-cilium/build.gradle b/contentgrid-testcontainers-k3s-cilium/build.gradle
index 6b16240..f369696 100644
--- a/contentgrid-testcontainers-k3s-cilium/build.gradle
+++ b/contentgrid-testcontainers-k3s-cilium/build.gradle
@@ -16,7 +16,7 @@ repositories {
 }
 
 dependencies {
-    implementation platform("org.springframework.boot:spring-boot-dependencies:3.5.11")
+    implementation platform("org.springframework.boot:spring-boot-dependencies:4.0.3")
 
     api 'org.testcontainers:testcontainers'
     api 'org.testcontainers:k3s'
diff --git a/contentgrid-testcontainers-registry/build.gradle b/contentgrid-testcontainers-registry/build.gradle
index ce2a87e..d9d11b8 100644
--- a/contentgrid-testcontainers-registry/build.gradle
+++ b/contentgrid-testcontainers-registry/build.gradle
@@ -15,7 +15,7 @@ repositories {
 }
 
 dependencies {
-    implementation platform("org.springframework.boot:spring-boot-dependencies:3.5.11")
+    implementation platform("org.springframework.boot:spring-boot-dependencies:4.0.3")
 
     api 'org.testcontainers:testcontainers'