diff --git a/CHANGELOG.md b/CHANGELOG.md
index 99648a5ef..80adfe2f9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 - `serverbackup`: [v0.4.0](services/serverbackup/CHANGELOG.md#v040-2024-11-26)
   - **Feature:** Add support for managing `BackupPolicy` resources
+- `serverupdate`: [v0.2.1](services/serverupdate/CHANGELOG.md#v020-2024-11-28)
+  - **Bugfix:** Fix `Accept` header types
 - `serverupdate`: [v0.2.0](services/serverupdate/CHANGELOG.md#v020-2024-11-26)
   - **Feature:** Add support for managing `UpdatePolicy` resources
 - `dns`: [v0.12.0](services/dns/CHANGELOG.md#v0120-2024-11-20)
diff --git a/services/serverupdate/CHANGELOG.md b/services/serverupdate/CHANGELOG.md
index 635354a1d..a333ac06b 100644
--- a/services/serverupdate/CHANGELOG.md
+++ b/services/serverupdate/CHANGELOG.md
@@ -1,3 +1,7 @@
+## v0.2.1 (2024-11-28)
+
+- **Bugfix:** Fix `Accept` header types
+
 ## v0.2.0 (2024-11-26)
 
 - **Feature:** Add support for managing `UpdatePolicy` resources
diff --git a/services/serverupdate/api_default.go b/services/serverupdate/api_default.go
index 5facd4b3c..b65d3113b 100644
--- a/services/serverupdate/api_default.go
+++ b/services/serverupdate/api_default.go
@@ -69,7 +69,7 @@ func (r ApiCreateUpdateRequest) Execute() (*Update, error) {
 	}
 
 	// to determine the Accept header
-	localVarHTTPHeaderAccepts := []string{"application/json", "text/plain"}
+	localVarHTTPHeaderAccepts := []string{"application/json"}
 
 	// set Accept header
 	localVarHTTPHeaderAccept := selectHeaderAccept(localVarHTTPHeaderAccepts)
@@ -110,17 +110,6 @@ func (r ApiCreateUpdateRequest) Execute() (*Update, error) {
 			Body:         localVarBody,
 			ErrorMessage: localVarHTTPResponse.Status,
 		}
-		if localVarHTTPResponse.StatusCode == 401 {
-			var v string
-			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
-			if err != nil {
-				newErr.ErrorMessage = err.Error()
-				return localVarReturnValue, newErr
-			}
-			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
-			newErr.Model = v
-			return localVarReturnValue, newErr
-		}
 		return localVarReturnValue, newErr
 	}
 
@@ -208,7 +197,7 @@ func (r ApiCreateUpdateScheduleRequest) Execute() (*UpdateSchedule, error) {
 	}
 
 	// to determine the Accept header
-	localVarHTTPHeaderAccepts := []string{"application/json", "text/plain"}
+	localVarHTTPHeaderAccepts := []string{"application/json"}
 
 	// set Accept header
 	localVarHTTPHeaderAccept := selectHeaderAccept(localVarHTTPHeaderAccepts)
@@ -249,17 +238,6 @@ func (r ApiCreateUpdateScheduleRequest) Execute() (*UpdateSchedule, error) {
 			Body:         localVarBody,
 			ErrorMessage: localVarHTTPResponse.Status,
 		}
-		if localVarHTTPResponse.StatusCode == 401 {
-			var v string
-			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
-			if err != nil {
-				newErr.ErrorMessage = err.Error()
-				return localVarReturnValue, newErr
-			}
-			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
-			newErr.Model = v
-			return localVarReturnValue, newErr
-		}
 		return localVarReturnValue, newErr
 	}
 
@@ -342,7 +320,7 @@ func (r ApiDeleteUpdateScheduleRequest) Execute() error {
 	}
 
 	// to determine the Accept header
-	localVarHTTPHeaderAccepts := []string{"text/plain"}
+	localVarHTTPHeaderAccepts := []string{}
 
 	// set Accept header
 	localVarHTTPHeaderAccept := selectHeaderAccept(localVarHTTPHeaderAccepts)
@@ -381,17 +359,6 @@ func (r ApiDeleteUpdateScheduleRequest) Execute() error {
 			Body:         localVarBody,
 			ErrorMessage: localVarHTTPResponse.Status,
 		}
-		if localVarHTTPResponse.StatusCode == 401 {
-			var v string
-			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
-			if err != nil {
-				newErr.ErrorMessage = err.Error()
-				return newErr
-			}
-			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
-			newErr.Model = v
-			return newErr
-		}
 		return newErr
 	}
 
@@ -465,7 +432,7 @@ func (r ApiDisableServiceRequest) Execute() error {
 	}
 
 	// to determine the Accept header
-	localVarHTTPHeaderAccepts := []string{"text/plain"}
+	localVarHTTPHeaderAccepts := []string{}
 
 	// set Accept header
 	localVarHTTPHeaderAccept := selectHeaderAccept(localVarHTTPHeaderAccepts)
@@ -504,17 +471,6 @@ func (r ApiDisableServiceRequest) Execute() error {
 			Body:         localVarBody,
 			ErrorMessage: localVarHTTPResponse.Status,
 		}
-		if localVarHTTPResponse.StatusCode == 401 {
-			var v string
-			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
-			if err != nil {
-				newErr.ErrorMessage = err.Error()
-				return newErr
-			}
-			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
-			newErr.Model = v
-			return newErr
-		}
 		return newErr
 	}
 
@@ -588,7 +544,7 @@ func (r ApiDisableServiceResourceRequest) Execute() error {
 	}
 
 	// to determine the Accept header
-	localVarHTTPHeaderAccepts := []string{"text/plain"}
+	localVarHTTPHeaderAccepts := []string{}
 
 	// set Accept header
 	localVarHTTPHeaderAccept := selectHeaderAccept(localVarHTTPHeaderAccepts)
@@ -627,17 +583,6 @@ func (r ApiDisableServiceResourceRequest) Execute() error {
 			Body:         localVarBody,
 			ErrorMessage: localVarHTTPResponse.Status,
 		}
-		if localVarHTTPResponse.StatusCode == 401 {
-			var v string
-			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
-			if err != nil {
-				newErr.ErrorMessage = err.Error()
-				return newErr
-			}
-			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
-			newErr.Model = v
-			return newErr
-		}
 		return newErr
 	}
 
@@ -714,7 +659,7 @@ func (r ApiEnableServiceRequest) Execute() error {
 	}
 
 	// to determine the Accept header
-	localVarHTTPHeaderAccepts := []string{"text/plain"}
+	localVarHTTPHeaderAccepts := []string{}
 
 	// set Accept header
 	localVarHTTPHeaderAccept := selectHeaderAccept(localVarHTTPHeaderAccepts)
@@ -755,17 +700,6 @@ func (r ApiEnableServiceRequest) Execute() error {
 			Body:         localVarBody,
 			ErrorMessage: localVarHTTPResponse.Status,
 		}
-		if localVarHTTPResponse.StatusCode == 401 {
-			var v string
-			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
-			if err != nil {
-				newErr.ErrorMessage = err.Error()
-				return newErr
-			}
-			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
-			newErr.Model = v
-			return newErr
-		}
 		return newErr
 	}
 
@@ -845,7 +779,7 @@ func (r ApiEnableServiceResourceRequest) Execute() error {
 	}
 
 	// to determine the Accept header
-	localVarHTTPHeaderAccepts := []string{"text/plain"}
+	localVarHTTPHeaderAccepts := []string{}
 
 	// set Accept header
 	localVarHTTPHeaderAccept := selectHeaderAccept(localVarHTTPHeaderAccepts)
@@ -886,17 +820,6 @@ func (r ApiEnableServiceResourceRequest) Execute() error {
 			Body:         localVarBody,
 			ErrorMessage: localVarHTTPResponse.Status,
 		}
-		if localVarHTTPResponse.StatusCode == 401 {
-			var v string
-			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
-			if err != nil {
-				newErr.ErrorMessage = err.Error()
-				return newErr
-			}
-			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
-			newErr.Model = v
-			return newErr
-		}
 		return newErr
 	}
 
@@ -970,7 +893,7 @@ func (r ApiGetUpdateRequest) Execute() (*Update, error) {
 	}
 
 	// to determine the Accept header
-	localVarHTTPHeaderAccepts := []string{"application/json", "text/plain"}
+	localVarHTTPHeaderAccepts := []string{"application/json"}
 
 	// set Accept header
 	localVarHTTPHeaderAccept := selectHeaderAccept(localVarHTTPHeaderAccepts)
@@ -1009,17 +932,6 @@ func (r ApiGetUpdateRequest) Execute() (*Update, error) {
 			Body:         localVarBody,
 			ErrorMessage: localVarHTTPResponse.Status,
 		}
-		if localVarHTTPResponse.StatusCode == 401 {
-			var v string
-			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
-			if err != nil {
-				newErr.ErrorMessage = err.Error()
-				return localVarReturnValue, newErr
-			}
-			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
-			newErr.Model = v
-			return localVarReturnValue, newErr
-		}
 		return localVarReturnValue, newErr
 	}
 
@@ -1106,7 +1018,7 @@ func (r ApiGetUpdateScheduleRequest) Execute() (*UpdateSchedule, error) {
 	}
 
 	// to determine the Accept header
-	localVarHTTPHeaderAccepts := []string{"application/json", "text/plain"}
+	localVarHTTPHeaderAccepts := []string{"application/json"}
 
 	// set Accept header
 	localVarHTTPHeaderAccept := selectHeaderAccept(localVarHTTPHeaderAccepts)
@@ -1145,17 +1057,6 @@ func (r ApiGetUpdateScheduleRequest) Execute() (*UpdateSchedule, error) {
 			Body:         localVarBody,
 			ErrorMessage: localVarHTTPResponse.Status,
 		}
-		if localVarHTTPResponse.StatusCode == 401 {
-			var v string
-			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
-			if err != nil {
-				newErr.ErrorMessage = err.Error()
-				return localVarReturnValue, newErr
-			}
-			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
-			newErr.Model = v
-			return localVarReturnValue, newErr
-		}
 		return localVarReturnValue, newErr
 	}
 
@@ -1355,7 +1256,7 @@ func (r ApiListUpdateSchedulesRequest) Execute() (*GetUpdateSchedulesResponse, e
 	}
 
 	// to determine the Accept header
-	localVarHTTPHeaderAccepts := []string{"application/json", "text/plain"}
+	localVarHTTPHeaderAccepts := []string{"application/json"}
 
 	// set Accept header
 	localVarHTTPHeaderAccept := selectHeaderAccept(localVarHTTPHeaderAccepts)
@@ -1394,17 +1295,6 @@ func (r ApiListUpdateSchedulesRequest) Execute() (*GetUpdateSchedulesResponse, e
 			Body:         localVarBody,
 			ErrorMessage: localVarHTTPResponse.Status,
 		}
-		if localVarHTTPResponse.StatusCode == 401 {
-			var v string
-			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
-			if err != nil {
-				newErr.ErrorMessage = err.Error()
-				return localVarReturnValue, newErr
-			}
-			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
-			newErr.Model = v
-			return localVarReturnValue, newErr
-		}
 		return localVarReturnValue, newErr
 	}
 
@@ -1486,7 +1376,7 @@ func (r ApiListUpdatesRequest) Execute() (*GetUpdatesListResponse, error) {
 	}
 
 	// to determine the Accept header
-	localVarHTTPHeaderAccepts := []string{"application/json", "text/plain"}
+	localVarHTTPHeaderAccepts := []string{"application/json"}
 
 	// set Accept header
 	localVarHTTPHeaderAccept := selectHeaderAccept(localVarHTTPHeaderAccepts)
@@ -1525,17 +1415,6 @@ func (r ApiListUpdatesRequest) Execute() (*GetUpdatesListResponse, error) {
 			Body:         localVarBody,
 			ErrorMessage: localVarHTTPResponse.Status,
 		}
-		if localVarHTTPResponse.StatusCode == 401 {
-			var v string
-			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
-			if err != nil {
-				newErr.ErrorMessage = err.Error()
-				return localVarReturnValue, newErr
-			}
-			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
-			newErr.Model = v
-			return localVarReturnValue, newErr
-		}
 		return localVarReturnValue, newErr
 	}
 
@@ -1625,7 +1504,7 @@ func (r ApiUpdateUpdateScheduleRequest) Execute() (*UpdateSchedule, error) {
 	}
 
 	// to determine the Accept header
-	localVarHTTPHeaderAccepts := []string{"application/json", "text/plain"}
+	localVarHTTPHeaderAccepts := []string{"application/json"}
 
 	// set Accept header
 	localVarHTTPHeaderAccept := selectHeaderAccept(localVarHTTPHeaderAccepts)
@@ -1666,17 +1545,6 @@ func (r ApiUpdateUpdateScheduleRequest) Execute() (*UpdateSchedule, error) {
 			Body:         localVarBody,
 			ErrorMessage: localVarHTTPResponse.Status,
 		}
-		if localVarHTTPResponse.StatusCode == 401 {
-			var v string
-			err = a.client.decode(&v, localVarBody, localVarHTTPResponse.Header.Get("Content-Type"))
-			if err != nil {
-				newErr.ErrorMessage = err.Error()
-				return localVarReturnValue, newErr
-			}
-			newErr.ErrorMessage = oapierror.FormatErrorMessage(localVarHTTPResponse.Status, &v)
-			newErr.Model = v
-			return localVarReturnValue, newErr
-		}
 		return localVarReturnValue, newErr
 	}