diff --git a/authorisation-adjustment-example/build.gradle b/authorisation-adjustment-example/build.gradle
index 7c20567..4af1a41 100644
--- a/authorisation-adjustment-example/build.gradle
+++ b/authorisation-adjustment-example/build.gradle
@@ -19,7 +19,7 @@ dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-thymeleaf'
     implementation 'org.springframework.boot:spring-boot-starter-web'
     implementation 'nz.net.ultraq.thymeleaf:thymeleaf-layout-dialect'
-    implementation 'com.adyen:adyen-java-api-library:29.1.0'
+    implementation 'com.adyen:adyen-java-api-library:39.4.0'
 
     developmentOnly 'org.springframework.boot:spring-boot-devtools'