diff --git a/specs/openapi.json b/specs/openapi.json
index f3e6fc1..094357a 100644
--- a/specs/openapi.json
+++ b/specs/openapi.json
@@ -10422,6 +10422,26 @@
                 "$ref": "#/components/schemas/SnowflakeType"
               }
             ]
+          },
+          "target_user": {
+            "oneOf": [
+              {
+                "type": "null"
+              },
+              {
+                "$ref": "#/components/schemas/UserResponse"
+              }
+            ]
+          },
+          "target_message_id": {
+            "oneOf": [
+              {
+                "type": "null"
+              },
+              {
+                "$ref": "#/components/schemas/SnowflakeType"
+              }
+            ]
           }
         },
         "required": [
diff --git a/specs/openapi_preview.json b/specs/openapi_preview.json
index 0c238e5..8155d52 100644
--- a/specs/openapi_preview.json
+++ b/specs/openapi_preview.json
@@ -10422,6 +10422,26 @@
                 "$ref": "#/components/schemas/SnowflakeType"
               }
             ]
+          },
+          "target_user": {
+            "oneOf": [
+              {
+                "type": "null"
+              },
+              {
+                "$ref": "#/components/schemas/UserResponse"
+              }
+            ]
+          },
+          "target_message_id": {
+            "oneOf": [
+              {
+                "type": "null"
+              },
+              {
+                "$ref": "#/components/schemas/SnowflakeType"
+              }
+            ]
           }
         },
         "required": [