diff --git a/database.go b/database.go
index ecd0e02..61dc86d 100644
--- a/database.go
+++ b/database.go
@@ -54,7 +54,7 @@ type Release struct {
 	Released          string         `json:"released"`
 	ReleasedFormatted string         `json:"released_formatted"`
 	ResourceURL       string         `json:"resource_url"`
-	Series            []string       `json:"series"`
+	Series            []Series       `json:"series"`
 	Status            string         `json:"status"`
 	Styles            []string       `json:"styles"`
 	Tracklist         []Track        `json:"tracklist"`
diff --git a/models.go b/models.go
index 972b4c7..94ba473 100644
--- a/models.go
+++ b/models.go
@@ -14,6 +14,17 @@ type Video struct {
 	URI         string `json:"uri"`
 }
 
+// Series ...
+type Series struct {
+	Catno          string `json:"catno"`
+	EntityType     string `json:"entity_type"`
+	EntityTypeName string `json:"entity_type_name"`
+	ID             int    `json:"id"`
+	Name           string `json:"name"`
+	ResourceURL    string `json:"resource_url"`
+	ThumbnailURL   string `json:"thumbnail_url"`
+}
+
 // ArtistSource ...
 type ArtistSource struct {
 	Anv         string `json:"anv"`
@@ -57,8 +68,9 @@ type LabelSource struct {
 
 // Identifier ...
 type Identifier struct {
-	Type  string `json:"type"`
-	Value string `json:"value"`
+	Description string `json:"description"`
+	Type        string `json:"type"`
+	Value       string `json:"value"`
 }
 
 // Format ...