diff --git a/snippetbox/cmd/web/main.go b/snippetbox/cmd/web/main.go
index 5aab8c3..cdcb615 100644
--- a/snippetbox/cmd/web/main.go
+++ b/snippetbox/cmd/web/main.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"crypto/tls"
 	"database/sql"
 	"flag"
 	"html/template"
@@ -67,10 +68,15 @@ func main() {
 		sessionManager: sessionManager,
 	}
 
+	tlsConfig := &tls.Config{
+		CurvePreferences: []tls.CurveID{tls.X25519, tls.CurveP256},
+	}
+
 	srv := &http.Server{
-		Addr:     *addr,
-		Handler:  app.routes(),
-		ErrorLog: slog.NewLogLogger(logger.Handler(), slog.LevelError),
+		Addr:      *addr,
+		Handler:   app.routes(),
+		ErrorLog:  slog.NewLogLogger(logger.Handler(), slog.LevelError),
+		TLSConfig: tlsConfig,
 	}
 
 	logger.Info("starting server", slog.String("addr", srv.Addr))