diff --git a/java_console/io/build.gradle b/java_console/io/build.gradle
index ae43245028..9ebb9d5ed2 100644
--- a/java_console/io/build.gradle
+++ b/java_console/io/build.gradle
@@ -23,4 +23,5 @@ dependencies {
 
     // junit 4.13 does not mix well with httpclient :(
     testImplementation group: 'junit', name: 'junit', version: '4.8.2'
+    testImplementation group: 'org.mockito', name: 'mockito-all', version: '1.10.19'
 }
\ No newline at end of file