diff --git a/tempest/api/compute/images/test_images_negative.py b/tempest/api/compute/images/test_images_negative.py
index 3923068..6c97072 100644
--- a/tempest/api/compute/images/test_images_negative.py
+++ b/tempest/api/compute/images/test_images_negative.py
@@ -62,7 +62,7 @@
         # Create a new image with invalid server id
         meta = {'image_type': 'test'}
         self.assertRaises(lib_exc.NotFound, self.create_image_from_server,
-                          '!@$^&*()', meta=meta)
+                          data_utils.rand_name('invalid'), meta=meta)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('ec176029-73dc-4037-8d72-2e4ff60cf538')
@@ -87,7 +87,7 @@
     def test_delete_image_with_invalid_image_id(self):
         # An image should not be deleted with invalid image id
         self.assertRaises(lib_exc.NotFound, self.client.delete_image,
-                          '!@$^&*()')
+                          data_utils.rand_name('invalid'))
 
     @test.attr(type=['negative'])
     @test.idempotent_id('137aef61-39f7-44a1-8ddf-0adf82511701')
diff --git a/tempest/api/compute/volumes/test_volumes_negative.py b/tempest/api/compute/volumes/test_volumes_negative.py
index c4041cb..0e1fef2 100644
--- a/tempest/api/compute/volumes/test_volumes_negative.py
+++ b/tempest/api/compute/volumes/test_volumes_negative.py
@@ -95,7 +95,8 @@
         # Negative: Should not be able to delete volume when invalid ID is
         # passed
         self.assertRaises(lib_exc.NotFound,
-                          self.client.delete_volume, '!@#$%^&*()')
+                          self.client.delete_volume,
+                          data_utils.rand_name('invalid'))
 
     @test.attr(type=['negative'])
     @test.idempotent_id('0d1417c5-4ae8-4c2c-adc5-5f0b864253e5')
diff --git a/tempest/api/volume/test_volumes_negative.py b/tempest/api/volume/test_volumes_negative.py
index c45ace6..bcdbd22 100644
--- a/tempest/api/volume/test_volumes_negative.py
+++ b/tempest/api/volume/test_volumes_negative.py
@@ -133,7 +133,8 @@
         v_name = data_utils.rand_name(self.__class__.__name__ + '-Volume')
         metadata = {'Type': 'work'}
         self.assertRaises(lib_exc.NotFound, self.volumes_client.update_volume,
-                          volume_id='#$%%&^&^', display_name=v_name,
+                          volume_id=data_utils.rand_name('invalid'),
+                          display_name=v_name,
                           metadata=metadata)
 
     @test.attr(type=['negative'])
@@ -150,7 +151,7 @@
     def test_get_invalid_volume_id(self):
         # Should not be able to get volume with invalid id
         self.assertRaises(lib_exc.NotFound, self.volumes_client.show_volume,
-                          '#$%%&^&^')
+                          data_utils.rand_name('invalid'))
 
     @test.attr(type=['negative'])
     @test.idempotent_id('c6c3db06-29ad-4e91-beb0-2ab195fe49e3')
@@ -164,7 +165,7 @@
     def test_delete_invalid_volume_id(self):
         # Should not be able to delete volume when invalid ID is passed
         self.assertRaises(lib_exc.NotFound, self.volumes_client.delete_volume,
-                          '!@#$%^&*()')
+                          data_utils.rand_name('invalid'))
 
     @test.attr(type=['negative'])
     @test.idempotent_id('441a1550-5d44-4b30-af0f-a6d402f52026')