diff --git a/build.gradle b/build.gradle
index 851b83b..a8ffb8d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -71,7 +71,7 @@ dependencies {
     testRuntimeOnly group: 'org.junit.platform', name: 'junit-platform-launcher'
 
     testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.12.0'
-    testImplementation group: 'org.assertj', name: 'assertj-core', version: '3.26.0'
+    testImplementation group: 'org.assertj', name: 'assertj-core', version: '3.26.3'
     testImplementation group: 'cd.go.plugin', name: 'go-plugin-api', version: project.versions.gocdPluginApi
 }