diff --git a/CHANGELOG.md b/CHANGELOG.md
index 68b306be7..c98f4a127 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,8 +3,11 @@
   - **Bugfix:** Updated regex validator
 - `stackitmarketplace`: [v1.1.0](services/stackitmarketplace/CHANGELOG.md#v110-2025-05-13)
   - **Breaking Change:** Added organization id to `VendorSubscription`
-- `ske`: [v0.4.2](services/ske/CHANGELOG.md#v042-2025-05-13)
-  - **Feature:** Added `ClusterError`
+- `ske`: 
+  - [v0.4.3](services/ske/CHANGELOG.md#v043-2025-05-14)
+    - **Feature:** Added enum `SKE_NODE_MACHINE_TYPE_NOT_FOUND` to `ClusterError` 
+  - [v0.4.2](services/ske/CHANGELOG.md#v042-2025-05-13)
+    - **Feature:** Added `ClusterError`
 
 ## Release (2025-05-09)
 - `stackitmarketplace`: 
diff --git a/services/ske/CHANGELOG.md b/services/ske/CHANGELOG.md
index e5000e490..783324494 100644
--- a/services/ske/CHANGELOG.md
+++ b/services/ske/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.4.3 (2025-05-14)
+- **Feature:** Added enum `SKE_NODE_MACHINE_TYPE_NOT_FOUND` to `ClusterError`
+
 ## v0.4.2 (2025-05-13)
 - **Feature:** Added `ClusterError`
 
diff --git a/services/ske/pyproject.toml b/services/ske/pyproject.toml
index b7c4ed69d..22bb148cd 100644
--- a/services/ske/pyproject.toml
+++ b/services/ske/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-ske"
 
 [tool.poetry]
 name = "stackit-ske"
-version = "v0.4.2"
+version = "v0.4.3"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
diff --git a/services/ske/src/stackit/ske/models/cluster_error.py b/services/ske/src/stackit/ske/models/cluster_error.py
index 3afa11a77..9e0e0223e 100644
--- a/services/ske/src/stackit/ske/models/cluster_error.py
+++ b/services/ske/src/stackit/ske/models/cluster_error.py
@@ -42,10 +42,11 @@ def code_validate_enum(cls, value):
                 "SKE_DNS_ZONE_NOT_FOUND",
                 "SKE_NODE_MISCONFIGURED_PDB",
                 "SKE_NODE_NO_VALID_HOST_FOUND",
+                "SKE_NODE_MACHINE_TYPE_NOT_FOUND",
             ]
         ):
             raise ValueError(
-                "must be one of enum values ('SKE_OBSERVABILITY_INSTANCE_NOT_FOUND', 'SKE_DNS_ZONE_NOT_FOUND', 'SKE_NODE_MISCONFIGURED_PDB', 'SKE_NODE_NO_VALID_HOST_FOUND')"
+                "must be one of enum values ('SKE_OBSERVABILITY_INSTANCE_NOT_FOUND', 'SKE_DNS_ZONE_NOT_FOUND', 'SKE_NODE_MISCONFIGURED_PDB', 'SKE_NODE_NO_VALID_HOST_FOUND', 'SKE_NODE_MACHINE_TYPE_NOT_FOUND')"
             )
         return value