diff --git a/models.gen.go b/models.gen.go
index 2fb7172..aa05f6a 100644
--- a/models.gen.go
+++ b/models.gen.go
@@ -306,6 +306,9 @@ type APIKey struct {
 	// Key API key. Will be shown only in the response when creating the key.
 	Key *string `json:"key,omitempty"`
 
+	// LastAccessAt Timestamp at which API key was last used - accurate to the day only.
+	LastAccessAt *time.Time `json:"last_access_at,omitempty"`
+
 	// Name Name of the API key
 	Name APIKeyName `json:"name"`
 
diff --git a/spec.json b/spec.json
index 62a8860..71d2e5f 100644
--- a/spec.json
+++ b/spec.json
@@ -8280,6 +8280,12 @@
             "format" : "date-time",
             "type" : "string"
           },
+          "last_access_at" : {
+            "description" : "Timestamp at which API key was last used - accurate to the day only.",
+            "example" : "2017-07-14T16:53:42Z",
+            "format" : "date-time",
+            "type" : "string"
+          },
           "expired" : {
             "description" : "Whether the API key has expired or not",
             "example" : false,