diff --git a/backend/internal/auth/firebase.go b/backend/internal/auth/token_verifier.go
similarity index 69%
rename from backend/internal/auth/firebase.go
rename to backend/internal/auth/token_verifier.go
index 413b280..22cca24 100644
--- a/backend/internal/auth/firebase.go
+++ b/backend/internal/auth/token_verifier.go
@@ -2,7 +2,7 @@ package auth
 
 import "context"
 
-// TokenVerifier abstracts Firebase token verification for testability.
+// TokenVerifier abstracts token verification for testability.
 type TokenVerifier interface {
 	VerifyToken(ctx context.Context, idToken string) (uid, email, name, avatarURL string, err error)
 }