diff --git a/.travis.yml b/.travis.yml
index 3562af7..e9b9799 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,7 @@ env:
   - PHPUNIT_VERSION=~6.4.0
   - PHPUNIT_VERSION=~6.5.0
   - PHPUNIT_VERSION=~7.0.0
+  - PHPUNIT_VERSION=~7.1.0
 
 php:
   - 7.2
@@ -27,6 +28,8 @@ matrix:
   exclude:
     - php: 7
       env: PHPUNIT_VERSION=dev-master
+    - php: 7
+      env: PHPUNIT_VERSION=~7.1.0
     - php: 7
       env: PHPUNIT_VERSION=~7.0.0
   allow_failures:
diff --git a/classes/MockObjectProxy.php b/classes/MockObjectProxy.php
index 0132be0..7fd9ccc 100644
--- a/classes/MockObjectProxy.php
+++ b/classes/MockObjectProxy.php
@@ -79,4 +79,14 @@ public function __phpunit_hasMatchers()
         // @codingStandardsIgnoreEnd
         return $this->mockObject->__phpunit_hasMatchers();
     }
+
+    /**
+     * @SuppressWarnings(PHPMD)
+     */
+    // @codingStandardsIgnoreStart
+    public function __phpunit_setReturnValueGeneration(bool $returnValueGeneration)
+    {
+        // @codingStandardsIgnoreEnd
+        return $this->mockObject->__phpunit_setReturnValueGeneration($returnValueGeneration);
+    }
 }