diff --git a/spec/system/login/message_spec.rb b/spec/system/login/message_spec.rb
index d9b80ad8f..6f1554c95 100644
--- a/spec/system/login/message_spec.rb
+++ b/spec/system/login/message_spec.rb
@@ -63,7 +63,7 @@ RSpec.describe 'Login Message', type: :system, authenticated: false do
 
     visit '/'
 
-    wait(5).until do
+    wait(8).until do
       pinged_since?(timestamp) && connection_open?
     end
 
diff --git a/test/browser/agent_ticket_email_signature_test.rb b/test/browser/agent_ticket_email_signature_test.rb
index 393f4915f..3738363e9 100644
--- a/test/browser/agent_ticket_email_signature_test.rb
+++ b/test/browser/agent_ticket_email_signature_test.rb
@@ -74,7 +74,7 @@ class AgentTicketEmailSignatureTest < TestCase
         ],
       }
     )
-    sleep 6
+    sleep 10 # wait until background job is processed
 
     #
     # check signature in new ticket
diff --git a/test/browser/agent_ticket_macro_test.rb b/test/browser/agent_ticket_macro_test.rb
index 582de0eb4..7ce122088 100644
--- a/test/browser/agent_ticket_macro_test.rb
+++ b/test/browser/agent_ticket_macro_test.rb
@@ -158,6 +158,8 @@ class AgentTicketMacroTest < TestCase
     # when we re-enter the Zoom view for a ticket via the overview
     tasks_close_all()
 
+    sleep 8 # to update overview list to open correct/next ticket in overview
+
     ticket_open_by_overview(
       title: ticket1[:title],
       link:  '#ticket/view/all_unassigned',
diff --git a/test/browser/agent_ticket_update2_test.rb b/test/browser/agent_ticket_update2_test.rb
index 1b7cda6c6..a5f6a9ee5 100644
--- a/test/browser/agent_ticket_update2_test.rb
+++ b/test/browser/agent_ticket_update2_test.rb
@@ -160,7 +160,7 @@ class AgentTicketUpdate2Test < TestCase
       css:     '.active div.ticket-article',
       value:   'some level 3 <b>body</b> in instance 2',
     )
-    sleep 1
+    sleep 2
     match_not(
       browser:  browser1,
       css:      '.content.active .js-reset',