diff --git a/build.gradle b/build.gradle
index 115b1cb..51cfa1a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -34,7 +34,7 @@ dependencies {
     testCompile("org.junit.jupiter:junit-jupiter-api:${junitJupiterVersion}")
     testRuntime("org.junit.jupiter:junit-jupiter-engine:${junitJupiterVersion}")
     testCompile group: 'org.hamcrest', name: 'hamcrest-all', version: '1.3'
-    testCompile group: 'io.ratpack', name: 'ratpack-test', version: '1.4.4'
+    testCompile group: 'io.ratpack', name: 'ratpack-test', version: '1.9.0'
 
 }