diff --git a/aat/build.gradle b/aat/build.gradle
index c1de6700..ce9293f9 100644
--- a/aat/build.gradle
+++ b/aat/build.gradle
@@ -22,7 +22,7 @@ repositories {
 
 // tag::dependencies[]
 dependencies {
-    testImplementation group: 'com.github.hmcts', name: 'ccd-test-definitions', version: '7.25.4'
+    testImplementation group: 'com.github.hmcts', name: 'ccd-test-definitions', version: '7.27.7-prerelease-CME-537'
     testImplementation group: 'com.github.hmcts', name: 'befta-fw', version: '9.2.4'
     testImplementation 'com.github.hmcts:fortify-client:1.4.10:all'
 }