diff --git a/tests/test_arbitrary_package_attack.py b/tests/test_arbitrary_package_attack.py
index 0d9a9221..fd47cf63 100755
--- a/tests/test_arbitrary_package_attack.py
+++ b/tests/test_arbitrary_package_attack.py
@@ -89,7 +89,7 @@ def setUpClass(cls):
 
     # NOTE: Following error is raised if a delay is not applied:
     # <urlopen error [Errno 111] Connection refused>
-    time.sleep(.2)
+    time.sleep(.8)
 
 
 
diff --git a/tests/test_endless_data_attack.py b/tests/test_endless_data_attack.py
index 00382f25..b81a23f9 100755
--- a/tests/test_endless_data_attack.py
+++ b/tests/test_endless_data_attack.py
@@ -92,7 +92,7 @@ def setUpClass(cls):
 
     # NOTE: Following error is raised if a delay is not applied:
     # <urlopen error [Errno 111] Connection refused>
-    time.sleep(.5)
+    time.sleep(.8)
 
 
 
diff --git a/tests/test_indefinite_freeze_attack.py b/tests/test_indefinite_freeze_attack.py
index 436198d4..8d24a687 100755
--- a/tests/test_indefinite_freeze_attack.py
+++ b/tests/test_indefinite_freeze_attack.py
@@ -92,7 +92,7 @@ def setUpClass(cls):
 
     # NOTE: Following error is raised if a delay is not applied:
     # <urlopen error [Errno 111] Connection refused>
-    time.sleep(.2)
+    time.sleep(.8)
 
 
 
diff --git a/tests/test_mix_and_match_attack.py b/tests/test_mix_and_match_attack.py
index 69ed0594..e44f7927 100755
--- a/tests/test_mix_and_match_attack.py
+++ b/tests/test_mix_and_match_attack.py
@@ -96,7 +96,7 @@ def setUpClass(cls):
 
     # NOTE: Following error is raised if a delay is not applied:
     # <urlopen error [Errno 111] Connection refused>
-    time.sleep(.2)
+    time.sleep(.8)
 
 
 
diff --git a/tests/test_replay_attack.py b/tests/test_replay_attack.py
index dad8269d..aba4b227 100755
--- a/tests/test_replay_attack.py
+++ b/tests/test_replay_attack.py
@@ -97,7 +97,7 @@ def setUpClass(cls):
 
     # NOTE: Following error is raised if a delay is not applied:
     # <urlopen error [Errno 111] Connection refused>
-    time.sleep(.2)
+    time.sleep(.8)