diff --git a/go.mod b/go.mod
index 62cba61..b099387 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.26.0
 require (
 	firebase.google.com/go/v4 v4.18.0
 	github.com/ReneKroon/ttlcache v1.7.0
-	github.com/code-payments/flipcash2-protobuf-api v1.3.0
+	github.com/code-payments/flipcash2-protobuf-api v1.3.1-0.20260420185108-1e0abce29a0a
 	github.com/code-payments/ocp-protobuf-api v1.9.0
 	github.com/code-payments/ocp-server v1.10.0
 	github.com/devsisters/go-applereceipt v0.0.0-20240805020915-fa22a0160fc2
diff --git a/go.sum b/go.sum
index 63d454e..9a4b99a 100644
--- a/go.sum
+++ b/go.sum
@@ -40,8 +40,8 @@ github.com/cockroachdb/cockroach-go/v2 v2.2.0 h1:/5znzg5n373N/3ESjHF5SMLxiW4RKB0
 github.com/cockroachdb/cockroach-go/v2 v2.2.0/go.mod h1:u3MiKYGupPPjkn3ozknpMUpxPaNLTFWAya419/zv6eI=
 github.com/code-payments/code-vm-indexer v1.2.0 h1:rSHpBMiT9BKgmKcXg/VIoi/h0t7jNxGx07Qz59m+6Q0=
 github.com/code-payments/code-vm-indexer v1.2.0/go.mod h1:vn91YN2qNqb+gGJeZe2+l+TNxVmEEiRHXXnIn2Y40h8=
-github.com/code-payments/flipcash2-protobuf-api v1.3.0 h1:HdMO6uXEmroFW++7YTxkQxbnroUdfhjsO43yJVacQ0U=
-github.com/code-payments/flipcash2-protobuf-api v1.3.0/go.mod h1:s/1pOsb4FTRD+LcvRKGjfmm6ygRS/m1ep34EIW0fuDs=
+github.com/code-payments/flipcash2-protobuf-api v1.3.1-0.20260420185108-1e0abce29a0a h1:pS06GcrKd8RAI/eBEu40WMz8HJ/NgUPXFisgNQiSHMc=
+github.com/code-payments/flipcash2-protobuf-api v1.3.1-0.20260420185108-1e0abce29a0a/go.mod h1:s/1pOsb4FTRD+LcvRKGjfmm6ygRS/m1ep34EIW0fuDs=
 github.com/code-payments/ocp-protobuf-api v1.9.0 h1:VpcOENVTmebpTENhpVaDbFfPPliK1zuMtjHzdhBQY2U=
 github.com/code-payments/ocp-protobuf-api v1.9.0/go.mod h1:tw6BooY5a8l6CtSZnKOruyKII0W04n89pcM4BizrgG8=
 github.com/code-payments/ocp-server v1.10.0 h1:BKBYqfrQmmMORTVoQn0Qym5B6eb6G792qM+mnG1UWsc=
diff --git a/moderation/server.go b/moderation/server.go
index 11892ef..4a2e916 100644
--- a/moderation/server.go
+++ b/moderation/server.go
@@ -55,14 +55,22 @@ func (s *Server) ModerateText(ctx context.Context, req *moderationpb.ModerateTex
 	log := s.log.With(zap.String("user_id", model.UserIDString(userID)))
 
 	result, err := s.client.ClassifyText(ctx, req.Text)
-	if err != nil {
+	switch err {
+	case nil:
+	case ErrUnsupportedLanguage:
+		return &moderationpb.ModerateTextResponse{Result: moderationpb.ModerateTextResponse_UNSUPPORTED_LANGUAGE}, nil
+	default:
 		log.Warn("Failed to classify text", zap.Error(err))
 		return nil, status.Error(codes.Internal, "")
 	}
 
 	if !result.Flagged && len(req.Text) <= currencycreator.MaxCurrencyConfigAccountNameLength {
 		currencyNameResult, err := s.client.ClassifyCurrencyName(ctx, req.Text)
-		if err != nil {
+		switch err {
+		case nil:
+		case ErrUnsupportedLanguage:
+			return &moderationpb.ModerateTextResponse{Result: moderationpb.ModerateTextResponse_UNSUPPORTED_LANGUAGE}, nil
+		default:
 			log.Warn("Failed to classify currency name", zap.Error(err))
 			return nil, status.Error(codes.Internal, "")
 		}