diff --git a/tests/e2e/Services/Functions/FunctionsCustomServerTest.php b/tests/e2e/Services/Functions/FunctionsCustomServerTest.php
index b41fa12f1..9dded8fdd 100644
--- a/tests/e2e/Services/Functions/FunctionsCustomServerTest.php
+++ b/tests/e2e/Services/Functions/FunctionsCustomServerTest.php
@@ -559,7 +559,7 @@ class FunctionsCustomServerTest extends Scope
             ],
         ];
 
-        sleep(count($envs) * 15);
+        sleep(count($envs) * 20);
         fwrite(STDERR, ".");
 
         /**