diff --git a/browserup-proxy-core/build.gradle b/browserup-proxy-core/build.gradle
index 45fedf51e..22c08226d 100644
--- a/browserup-proxy-core/build.gradle
+++ b/browserup-proxy-core/build.gradle
@@ -90,7 +90,7 @@ dependencies {
     testImplementation 'org.hamcrest:hamcrest:2.1'    
     testImplementation 'org.hamcrest:hamcrest-library:2.1'
     testImplementation 'com.github.tomakehurst:wiremock-jre8:2.24.1'
-    testImplementation 'org.mockito:mockito-core:3.0.0'
+    testImplementation 'org.mockito:mockito-core:3.1.0'
     testImplementation 'org.seleniumhq.selenium:selenium-firefox-driver:3.141.59'
     testImplementation 'org.apache.httpcomponents:httpclient:4.5.10'
 }
diff --git a/browserup-proxy-mitm/build.gradle b/browserup-proxy-mitm/build.gradle
index ecdc30858..5f6432e09 100644
--- a/browserup-proxy-mitm/build.gradle
+++ b/browserup-proxy-mitm/build.gradle
@@ -80,5 +80,5 @@ dependencies {
     testImplementation 'org.codehaus.groovy:groovy-all:2.5.8'
     testImplementation 'org.hamcrest:hamcrest:2.1'
     testImplementation 'org.hamcrest:hamcrest-library:2.1'
-    testImplementation 'org.mockito:mockito-core:3.0.0'
+    testImplementation 'org.mockito:mockito-core:3.1.0'
 }
diff --git a/browserup-proxy-rest/build.gradle b/browserup-proxy-rest/build.gradle
index 1323b54f5..0f054b8dd 100644
--- a/browserup-proxy-rest/build.gradle
+++ b/browserup-proxy-rest/build.gradle
@@ -97,7 +97,7 @@ dependencies {
     testImplementation 'org.codehaus.groovy.modules.http-builder:http-builder:0.7.2'
     testImplementation 'org.hamcrest:hamcrest:2.1'
     testImplementation 'org.hamcrest:hamcrest-library:2.1'
-    testImplementation 'org.mockito:mockito-core:3.0.0'
+    testImplementation 'org.mockito:mockito-core:3.1.0'
     testImplementation 'org.seleniumhq.selenium:selenium-api:3.4.0'
     testImplementation 'org.awaitility:awaitility:4.0.1'
     testImplementation 'xyz.rogfam:littleproxy:2.0.0-beta-3'