diff --git a/CHANGELOG.md b/CHANGELOG.md
index 72bb18f..7e1a415 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,14 @@ How to release a new version:
 
 ## [Unreleased]
 
+## [0.5.0] - 2022-01-20
+### Added
+- `ErrorResponseOptions` contains public error message.
+- `ErrorResponseOptions` contains request ID.
+- Error response options:
+  - `WithErrorMessage`
+  - `WithRequestID`
+
 ## [0.4.0] - 2022-01-12
 ### Changed
 - JSON tags in `ErrorResponseOptions`.
@@ -32,7 +40,8 @@ How to release a new version:
 ### Added
 - Added Changelog.
 
-[Unreleased]: https://github.com/strvcom/strv-backend-go-net/compare/v0.4.0...HEAD
+[Unreleased]: https://github.com/strvcom/strv-backend-go-net/compare/v0.5.0...HEAD
+[0.5.0]: https://github.com/strvcom/strv-backend-go-net/compare/v0.4.0...v0.5.0
 [0.4.0]: https://github.com/strvcom/strv-backend-go-net/compare/v0.3.0...v0.4.0
 [0.3.0]: https://github.com/strvcom/strv-backend-go-net/compare/v0.2.0...v0.3.0
 [0.2.0]: https://github.com/strvcom/strv-backend-go-net/compare/v0.1.0...v0.2.0
diff --git a/http/response.go b/http/response.go
index 1be4ba5..c2f0ced 100644
--- a/http/response.go
+++ b/http/response.go
@@ -89,13 +89,22 @@ func WriteErrorResponse(
 type ErrorResponseOptions struct {
 	ResponseOptions `json:"-"`
 
-	Err     error  `json:"-"`
-	ErrCode string `json:"errorCode"`
-	ErrData any    `json:"errorData,omitempty"`
+	RequestID string `json:"requestId,omitempty"`
+
+	Err        error  `json:"-"`
+	ErrCode    string `json:"errorCode"`
+	ErrMessage string `json:"errorMessage,omitempty"`
+	ErrData    any    `json:"errorData,omitempty"`
 }
 
 type ErrorResponseOption func(*ErrorResponseOptions)
 
+func WithRequestID(id string) ErrorResponseOption {
+	return func(o *ErrorResponseOptions) {
+		o.RequestID = id
+	}
+}
+
 func WithError(err error) ErrorResponseOption {
 	return func(o *ErrorResponseOptions) {
 		o.Err = err
@@ -108,6 +117,12 @@ func WithErrorCode(code string) ErrorResponseOption {
 	}
 }
 
+func WithErrorMessage(msg string) ErrorResponseOption {
+	return func(o *ErrorResponseOptions) {
+		o.ErrMessage = msg
+	}
+}
+
 func WithErrorData(data any) ErrorResponseOption {
 	return func(o *ErrorResponseOptions) {
 		o.ErrData = data