diff --git a/sources/test/init-scripts/build.gradle b/sources/test/init-scripts/build.gradle
index 3267073..eb77c53 100644
--- a/sources/test/init-scripts/build.gradle
+++ b/sources/test/init-scripts/build.gradle
@@ -20,7 +20,7 @@ dependencies {
     testImplementation ('io.ratpack:ratpack-groovy-test:1.9.0') {
         exclude group: 'org.codehaus.groovy', module: 'groovy-all'
     }
-    testImplementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-smile:2.17.2'
+    testImplementation 'com.fasterxml.jackson.dataformat:jackson-dataformat-smile:2.18.0'
 }
 
 test {