diff --git a/tests/webdriver.toit b/tests/webdriver.toit
index 3cb2394..a392119 100644
--- a/tests/webdriver.toit
+++ b/tests/webdriver.toit
@@ -53,7 +53,7 @@ class WebDriver:
 
     url := "http://localhost:$port"
 
-    MAX-ATTEMPTS := 10
+    MAX-ATTEMPTS := 20
     for i := 0; i < MAX-ATTEMPTS; i++:
       exception := catch --unwind=(: i == MAX-ATTEMPTS - 1):
         response := client_.post-json --uri="$url/session" {