diff --git a/cli/build.gradle b/cli/build.gradle
index fdd8c12..c7a7468 100644
--- a/cli/build.gradle
+++ b/cli/build.gradle
@@ -22,5 +22,5 @@ dependencies {
     testImplementation group: 'org.junit.jupiter', name: 'junit-jupiter-api'
     testRuntimeOnly group: 'org.junit.jupiter', name: 'junit-jupiter-engine'
     testRuntimeOnly group: 'org.junit.platform', name: 'junit-platform-launcher'
-    testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.12.0'
+    testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.13.0'
 }
diff --git a/gocd-file-based-secrets-plugin/build.gradle b/gocd-file-based-secrets-plugin/build.gradle
index c5fdaad..ea8e163 100644
--- a/gocd-file-based-secrets-plugin/build.gradle
+++ b/gocd-file-based-secrets-plugin/build.gradle
@@ -48,7 +48,7 @@ dependencies {
     testImplementation group: 'org.junit.jupiter', name: 'junit-jupiter-api'
     testRuntimeOnly group: 'org.junit.jupiter', name: 'junit-jupiter-engine'
     testRuntimeOnly group: 'org.junit.platform', name: 'junit-platform-launcher'
-    testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.12.0'
+    testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.13.0'
     testImplementation group: 'org.skyscreamer', name: 'jsonassert', version: '1.5.3'
 }