diff --git a/tests/integration/test_integration.py b/tests/integration/test_integration.py
index 5591c97..9b9de53 100644
--- a/tests/integration/test_integration.py
+++ b/tests/integration/test_integration.py
@@ -149,16 +149,16 @@ async def test_given_tls_requirer_is_integrated_when_certificate_expires_then_ne
     action_output = await wait_for_requirer_certificates(
         ops_test=ops_test, ca_common_name=new_common_name
     )
-    old_certificate = action_output.get("ca-certificate", "")
+    old_certificate = action_output.get("certificate", "")
 
     assert old_certificate
 
-    time.sleep(30)
+    time.sleep(35)
 
     action_output = await wait_for_requirer_certificates(
         ops_test=ops_test, ca_common_name=new_common_name
     )
-    new_certificate = action_output.get("ca-certificate", "")
+    new_certificate = action_output.get("certificate", "")
     assert new_certificate
     assert new_certificate != old_certificate