diff --git a/modules/lamassu-lnbits.nix b/modules/lamassu-lnbits.nix
index b1c72bb..84b58a2 100644
--- a/modules/lamassu-lnbits.nix
+++ b/modules/lamassu-lnbits.nix
@@ -254,7 +254,7 @@ in
           if ${pkgs.postgresql}/bin/psql -tAc "SELECT 1 FROM pg_roles WHERE rolname='${cfg.database.user}'" | grep -q 1; then
             password=$(cat ${secretsDir}/lamassu-db-password)
             # Escape single quotes by doubling them (SQL standard)
-            escaped_password=$(printf '%s' "$password" | sed "s/'/''/g")
+            escaped_password=$(printf '%s' "$password" | sed "s/'/''''/g")
             ${pkgs.postgresql}/bin/psql -c "ALTER USER \"${cfg.database.user}\" WITH PASSWORD '$escaped_password';"
             exit 0
           fi