diff --git a/tests/TwigExtension/Talk/RetrievingEventsTest.php b/tests/TwigExtension/Talk/RetrievingEventsTest.php
index be8a9921..37799357 100644
--- a/tests/TwigExtension/Talk/RetrievingEventsTest.php
+++ b/tests/TwigExtension/Talk/RetrievingEventsTest.php
@@ -17,7 +17,7 @@ class RetrievingEventsTest extends TestCase
     /**
      * {@inheritdoc}
      */
-    public function setUp()
+    public function setUp(): void
     {
         $this->extension = new TalksExtension();
     }
diff --git a/tests/TwigExtension/Talk/RetrievingTalksTest.php b/tests/TwigExtension/Talk/RetrievingTalksTest.php
index 506ad04d..bea66076 100644
--- a/tests/TwigExtension/Talk/RetrievingTalksTest.php
+++ b/tests/TwigExtension/Talk/RetrievingTalksTest.php
@@ -17,7 +17,7 @@ class RetrievingTalksTest extends TestCase
     /**
      * {@inheritdoc}
      */
-    public function setUp()
+    public function setUp(): void
     {
         $this->extension = new TalksExtension();
     }