diff --git a/spec3.json b/spec3.json
index 9cf3b06..6284891 100644
--- a/spec3.json
+++ b/spec3.json
@@ -10129,6 +10129,16 @@
             "description": "The date and time that this user was deleted, if applicable.",
             "readOnly": true,
             "format": "date-time"
+          },
+          "invitedBy": {
+            "allOf": [
+              {
+                "$ref": "#/components/schemas/User"
+              }
+            ],
+            "nullable": true,
+            "description": "The user that invited this user, if they were invited. Only included in responses to admin users.",
+            "readOnly": true
           }
         }
       },
diff --git a/spec3.yml b/spec3.yml
index e2a8109..ea4416d 100644
--- a/spec3.yml
+++ b/spec3.yml
@@ -7190,6 +7190,13 @@ components:
           description: The date and time that this user was deleted, if applicable.
           readOnly: true
           format: date-time
+        invitedBy:
+          allOf:
+            - "$ref": "#/components/schemas/User"
+          nullable: true
+          description: The user that invited this user, if they were invited. Only
+            included in responses to admin users.
+          readOnly: true
     Invite:
       type: object
       properties: