diff --git a/types/adapters.d.ts b/types/adapters.d.ts
index 4c592b370c..8ef4203e29 100644
--- a/types/adapters.d.ts
+++ b/types/adapters.d.ts
@@ -120,9 +120,9 @@ export interface AdapterInstance<U = User, P = Profile, S = Session> {
 export type Adapter<
   C = Record<string, unknown>,
   O = Record<string, unknown>,
-  U = User,
-  P = Profile,
-  S = Session
+  U = unknown,
+  P = unknown,
+  S = unknown
 > = (
   config?: C,
   options?: O