diff --git a/README.md b/README.md
index b1d9097..a4990bd 100644
--- a/README.md
+++ b/README.md
@@ -21,11 +21,11 @@ int main(void)
 
     Server svr;
 
-    svr.get("/hi", [](const auto& req, auto& res) {
+    svr.get("/hi", [](const Request& req, const Response& res) {
         res.set_content("Hello World!", "text/plain");
     });
 
-    svr.get(R"(/numbers/(\d+))", [&](const auto& req, auto& res) {
+    svr.get(R"(/numbers/(\d+))", [&](const Request& req, const Response& res) {
         auto numbers = req.matches[1];
         res.set_content(numbers, "text/plain");
     });