diff --git a/.changeset/remove-idp-user-updated-at.md b/.changeset/remove-idp-user-updated-at.md
new file mode 100644
index 0000000000..e468cca022
--- /dev/null
+++ b/.changeset/remove-idp-user-updated-at.md
@@ -0,0 +1,5 @@
+---
+"@tailor-platform/sdk": patch
+---
+
+fix(runtime): remove non-existent `updatedAt` field from `idp.User`. The IDP service does not return this field, so the declaration was misleading consumers into expecting an optional timestamp that was always `undefined`.
diff --git a/packages/sdk/src/runtime/idp.ts b/packages/sdk/src/runtime/idp.ts
index 432b892976..32688f5636 100644
--- a/packages/sdk/src/runtime/idp.ts
+++ b/packages/sdk/src/runtime/idp.ts
@@ -22,7 +22,6 @@ export interface User {
   name: string;
   disabled: boolean;
   createdAt?: string;
-  updatedAt?: string;
 }
 
 /** Filter options for {@link Client.users}. */