diff --git a/core/build.gradle b/core/build.gradle
index 4c1a47255ce..bedd0248e00 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -204,7 +204,7 @@ dependencies {
     testCompile 'com.rabbitmq:amqp-client:5.9.0'
     testCompile 'org.mongodb:mongo-java-driver:3.12.7'
 
-    testCompile ('org.mockito:mockito-core:3.5.0') {
+    testCompile ('org.mockito:mockito-core:3.5.5') {
         exclude(module: 'hamcrest-core')
     }
     // Synthetic JAR used for MountableFileTest and DirectoryTarResourceTest