diff --git a/build.gradle b/build.gradle
index 756bfde..4f61073 100644
--- a/build.gradle
+++ b/build.gradle
@@ -104,7 +104,7 @@ dependencies {
   testImplementation project.deps.gocdPluginApi
   testImplementation group: 'uk.org.webcompere', name: 'system-stubs-jupiter', version: '2.1.3'
   testImplementation group: 'org.assertj', name: 'assertj-core', version: '3.24.2'
-  testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.5.0'
+  testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.6.0'
   testImplementation group: 'org.skyscreamer', name: 'jsonassert', version: '1.5.1'
   testImplementation group: 'org.jsoup', name: 'jsoup', version: '1.16.1'
 }