diff --git a/redfish/account_service/test_user_account.robot b/redfish/account_service/test_user_account.robot
index bec75dd..427f4ec 100644
--- a/redfish/account_service/test_user_account.robot
+++ b/redfish/account_service/test_user_account.robot
@@ -169,8 +169,9 @@
 
     Redfish Create User  admin_user  TestPwd123  Administrator   ${True}
 
-    Redfish.Patch  ${REDFISH_ACCOUNTS_SERVICE_URI}
-    ...  body={'AccountLockoutThreshold': ${account_lockout_threshold}, 'AccountLockoutDuration': ${account_lockout_duration}}
+    ${payload}=  Create Dictionary  AccountLockoutThreshold=${account_lockout_threshold}
+    ...  AccountLockoutDuration=${account_lockout_duration}
+    Redfish.Patch  ${REDFISH_ACCOUNTS_SERVICE_URI}  body=${payload}
 
     # Make ${account_lockout_threshold} failed login attempts.
     Repeat Keyword  ${account_lockout_threshold} times