diff --git a/build.gradle b/build.gradle
index 6d6d7e3..533455c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -78,7 +78,7 @@ dependencies {
     implementation group: 'com.squareup.okhttp3', name: 'okhttp', version: '4.12.0'
 
     testImplementation project.deps.gocdPluginApi
-    testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.17.0'
+    testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.18.0'
     testImplementation group: 'org.hamcrest', name: 'hamcrest', version: '3.0'
     testImplementation group: 'org.skyscreamer', name: 'jsonassert', version: '1.5.3'
     testImplementation group: 'org.jsoup', name: 'jsoup', version: '1.20.1'