diff --git a/tests/integration/extenders/ThrottleApiTest.php b/tests/integration/extenders/ThrottleApiTest.php
index a384eeaf71..ffa2886bde 100644
--- a/tests/integration/extenders/ThrottleApiTest.php
+++ b/tests/integration/extenders/ThrottleApiTest.php
@@ -57,6 +57,9 @@ public function list_discussions_can_be_restricted()
                 return true;
             }
         }));
+
+        $this->prepDb();
+
         $response = $this->send($this->request('GET', '/api/discussions', ['authenticatedAs' => 2]));
 
         $this->assertEquals(429, $response->getStatusCode());
@@ -67,16 +70,20 @@ public function list_discussions_can_be_restricted()
      */
     public function false_overrides_true_for_evaluating_throttlers()
     {
-        $this->extend((new Extend\ThrottleApi)->set('blockListDiscussions', function ($request) {
-            if ($request->getAttribute('routeName') === 'discussions.index') {
-                return true;
-            }
-        }));
-        $this->extend((new Extend\ThrottleApi)->set('blockListDiscussionsOverride', function ($request) {
-            if ($request->getAttribute('routeName') === 'discussions.index') {
-                return false;
-            }
-        }));
+        $this->extend(
+            (new Extend\ThrottleApi)->set('blockListDiscussions', function ($request) {
+                if ($request->getAttribute('routeName') === 'discussions.index') {
+                    return true;
+                }
+            }),
+            (new Extend\ThrottleApi)->set('blockListDiscussionsOverride', function ($request) {
+                if ($request->getAttribute('routeName') === 'discussions.index') {
+                    return false;
+                }
+            })
+        );
+
+        $this->prepDb();
 
         $response = $this->send($this->request('GET', '/api/discussions', ['authenticatedAs' => 2]));
 
diff --git a/tests/phpunit.integration.xml b/tests/phpunit.integration.xml
index 3e1869c9c5..0799fafe5b 100644
--- a/tests/phpunit.integration.xml
+++ b/tests/phpunit.integration.xml
@@ -6,7 +6,7 @@
          convertErrorsToExceptions="true"
          convertNoticesToExceptions="true"
          convertWarningsToExceptions="true"
-         processIsolation="false"
+         processIsolation="true"
          stopOnFailure="false">
 
     <testsuites>