diff --git a/packages/protos/io/restorecommerce/user.proto b/packages/protos/io/restorecommerce/user.proto
index 2f932af1..33eb75aa 100644
--- a/packages/protos/io/restorecommerce/user.proto
+++ b/packages/protos/io/restorecommerce/user.proto
@@ -349,6 +349,7 @@ message User {
   optional string totp_secret = 27; /// TOTP Secret
   optional string totp_secret_processing = 28; /// TOTP Secret before being confirmed
   repeated string totp_session_tokens = 29; /// TOTP Login session tokens
+  repeated string password_hash_history = 30; // List of historical password hashes
 }
 
 /**