diff --git a/doc/adoc/user_guide.adoc b/doc/adoc/user_guide.adoc
index e50a940..8d4df28 100644
--- a/doc/adoc/user_guide.adoc
+++ b/doc/adoc/user_guide.adoc
@@ -100,7 +100,7 @@ data or processes. For example, DMS will function if /home is its own
 partition, but not if /var is on a separate partition from root.
 
 SLES Version Support::
-Upgrade is supported from SLES12 SP4 or SLES12 SP5 to SLES 15 SP1. It is
+Upgrade is supported from SLES12 SP4 or SLES12 SP5 to SLES 15 SP3. It is
 possible to configure other versions of SLES as the migration target,
 but doing so is not a tested or supported use case.
 
@@ -370,8 +370,8 @@ the commands from the Installation Section of this document.
 * Upgrade is only possible for systems that use unencrypted root file systems,
   at the OS level. Encrypting the root device using a cloud framework
   encryption mechanism happens at a different level.
-* Upgrade has been tested for SLES 12 SP4 to SLES 15 SP1
-* Upgrade has been tested for SLES 12 SP5 to SLES 15 SP1
+* Upgrade has been tested for SLES 12 SP4 to SLES 15 SP3
+* Upgrade has been tested for SLES 12 SP5 to SLES 15 SP3
 * The system is primarily intended for Public Cloud instance upgrade use. The
   system also works for simple setups in a data center setting on physical
   installations. However, for any more complex configurations the off line
@@ -397,5 +397,5 @@ the commands from the Installation Section of this document.
 * The only supported migration path in the Public Cloud is from the
   final 2 service packs of a distribution to the first service pack of
   the next distribution. For example from SLES 12 SP4 or SLES 12 SP5 to
-  SLES 15 SP1. The packages delivered by SUSE in the Public Cloud Module
+  SLES 15 SP3. The packages delivered by SUSE in the Public Cloud Module
   implement this behavior by default.
diff --git a/image/pubcloud/sle15/config.kiwi b/image/pubcloud/sle15/config.kiwi
index cd9e38d..35c04f0 100644
--- a/image/pubcloud/sle15/config.kiwi
+++ b/image/pubcloud/sle15/config.kiwi
@@ -24,10 +24,10 @@
         <user password="$1$wYJUgpM5$RXMMeASDc035eX.NbYWFl0" home="/home/migration" name="migration" groups="users"/>
     </users>
     <repository type="rpm-md">
-        <source path="obs://SUSE:SLE-15-SP1:Update/standard"/>
+        <source path="obs://SUSE:SLE-15-SP3:Update/standard"/>
     </repository>
     <repository type="rpm-md">
-        <source path="obs://SUSE:SLE-15-SP1:GA/standard"/>
+        <source path="obs://SUSE:SLE-15-SP3:GA/standard"/>
     </repository>
     <repository type="rpm-md">
         <source path="obs://SUSE:SLE-15:Update/standard"/>
diff --git a/test/unit/defaults_test.py b/test/unit/defaults_test.py
index 8c500e1..53d7ea2 100644
--- a/test/unit/defaults_test.py
+++ b/test/unit/defaults_test.py
@@ -23,19 +23,19 @@ def test_get_os_release(self):
             ]
         )
         os_release_result = os_release_tuple(
-            name='SLES', version='15-SP1', version_id='15.1',
-            pretty_name='SUSE Linux Enterprise Server 15 SP1',
+            name='SLES', version='15-SP3', version_id='15.3',
+            pretty_name='SUSE Linux Enterprise Server 15 SP3',
             id='sles', id_like='suse', ansi_color='0;32',
-            cpe_name='cpe:/o:suse:sles:15:sp1'
+            cpe_name='cpe:/o:suse:sles:15:sp3'
         )
         os_release_content = ('NAME="SLES"\n'
-                              'VERSION="15-SP1"\n'
-                              'VERSION_ID="15.1"\n'
-                              'PRETTY_NAME="SUSE Linux Enterprise Server 15 SP1"\n'
+                              'VERSION="15-SP3"\n'
+                              'VERSION_ID="15.3"\n'
+                              'PRETTY_NAME="SUSE Linux Enterprise Server 15 SP3"\n'
                               'ID="sles"\n'
                               'ID_LIKE="suse"\n'
                               'ANSI_COLOR="0;32"\n'
-                              'CPE_NAME="cpe:/o:suse:sles:15:sp1"')
+                              'CPE_NAME="cpe:/o:suse:sles:15:sp3"')
         with patch('builtins.open', create=True) as mock_open:
             mock_open_os_release = MagicMock(spec=io.IOBase)
 
diff --git a/test/unit/migration_config_test.py b/test/unit/migration_config_test.py
index f4dd3b5..8162599 100644
--- a/test/unit/migration_config_test.py
+++ b/test/unit/migration_config_test.py
@@ -39,14 +39,14 @@ def test_get_migration_product_auto_detected(
             ]
         )
         os_release_result = os_release_tuple(
-            name='SLES', version='15-SP1', version_id='15.1',
-            pretty_name='SUSE Linux Enterprise Server 15 SP1',
+            name='SLES', version='15-SP3', version_id='15.3',
+            pretty_name='SUSE Linux Enterprise Server 15 SP3',
             id='sles', id_like='suse', ansi_color='0;32',
-            cpe_name='cpe:/o:suse:sles:15:sp1'
+            cpe_name='cpe:/o:suse:sles:15:sp3'
         )
         mock_get_system_root_path.return_value = '../data'
         mock_get_os_release.return_value = os_release_result
-        assert self.config.get_migration_product() == 'SLES/15.1/x86_64'
+        assert self.config.get_migration_product() == 'SLES/15.3/x86_64'
 
     @patch.object(Defaults, 'get_os_release')
     @patch.object(SUSEBaseProduct, 'get_tag')
@@ -62,10 +62,10 @@ def test_get_migration_product_targets(
             ]
         )
         os_release_result = os_release_tuple(
-            name='SLES', version='15-SP1', version_id='15.1',
-            pretty_name='SUSE Linux Enterprise Server 15 SP1',
+            name='SLES', version='15-SP3', version_id='15.3',
+            pretty_name='SUSE Linux Enterprise Server 15 SP3',
             id='sles', id_like='suse', ansi_color='0;32',
-            cpe_name='cpe:/o:suse:sles:15:sp1'
+            cpe_name='cpe:/o:suse:sles:15:sp3'
         )
         mock_get_system_root_path.return_value = '../data'
         mock_get_os_release.return_value = os_release_result
@@ -91,16 +91,16 @@ def test_update_migration_config_file_no_autodetect(
             ]
         )
         os_release_result = os_release_tuple(
-            name='SLES', version='15-SP1', version_id='15.1',
-            pretty_name='SUSE Linux Enterprise Server 15 SP1',
+            name='SLES', version='15-SP3', version_id='15.3',
+            pretty_name='SUSE Linux Enterprise Server 15 SP3',
             id='sles', id_like='suse', ansi_color='0;32',
-            cpe_name='cpe:/o:suse:sles:15:sp1'
+            cpe_name='cpe:/o:suse:sles:15:sp3'
         )
         mock_get_os_release.return_value = os_release_result
         mock_get_system_root_path.return_value = '../data'
         mock_get_product_name.return_value = None
         self.config.update_migration_config_file()
-        assert self.config.get_migration_product() == 'SLES/15.1/x86_64'
+        assert self.config.get_migration_product() == 'SLES/15.3/x86_64'
         assert self.config.is_debug_requested() is True
 
     def test_is_zypper_migration_plugin_requested(self):