diff --git a/group_vars/matrix_servers b/group_vars/matrix_servers
index 8f2f24620..28ce4b142 100755
--- a/group_vars/matrix_servers
+++ b/group_vars/matrix_servers
@@ -666,6 +666,7 @@ matrix_authentication_service_config_passwords_schemes:
   - version: 1
     secret: "{{ matrix_synapse_password_config_pepper }}"
     algorithm: bcrypt
+    unicode_normalization: true
   - version: 2
     algorithm: argon2id