diff --git a/VERSION b/VERSION
index 1e41039..39716cb 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.13.0-dev3
+2.13.0-dev4
diff --git a/libraries/onu_utilities.robot b/libraries/onu_utilities.robot
index b05397c..5a481db 100755
--- a/libraries/onu_utilities.robot
+++ b/libraries/onu_utilities.robot
@@ -179,7 +179,7 @@
     ${openonu_ready_ts}=    Get Pod Ready Timestamp by Label    ${namespace}    app    adapter-open-onu
     ${restart_duration}=    Subtract Date From Date    ${openonu_ready_ts}    ${previous_ready_ts}
     Should Be True     ${restart_duration}>0
-    Sleep    10s
+    Sleep    20s
     # delete the olt passed, if available (special feature)
     ${olt_to_be_deleted_device_id}=    Run Keyword IF  "${olt_to_be_deleted_sn}"!="${EMPTY}"
     ...    Get OLTDeviceID From OLT List    ${olt_to_be_deleted_sn}