diff --git a/include/serial.h b/include/serial.h
index bed5fd0..b4e2abe 100644
--- a/include/serial.h
+++ b/include/serial.h
@@ -91,7 +91,8 @@ class Serial {
     }
 
     template <SupportString T>
-    bool OpenDevice(T portName, unsigned int bauds = 115200, int delayTime = 0) {
+    bool OpenDevice(T portName, unsigned int bauds = 115200,
+                    int delayTime = 0) {
         std::string reallyPortName;
         std::format_to(std::back_inserter(reallyPortName), "\\\\.\\{}",
                        portName);
@@ -144,20 +145,18 @@ class Serial {
         Log("Send: " + reallyCommand);
         std::this_thread::sleep_for(10ms);
         auto availableSize = ser.available();
-        char *buffer = new char[availableSize + 1];
-        std::memset(buffer, 0, availableSize);
-        auto size = ser.readBytes(buffer, availableSize, timeout);
+        auto buffer = std::make_unique<char[]>(availableSize + 1);
+        std::memset(buffer.get(), 0, availableSize);
+        auto size = ser.readBytes(buffer.get(), availableSize, timeout);
 
         if (size > 0) {
             buffer[size] = '\0';
             std::string response = std::string(buffer);
             Log("Receive: " + response);
-            delete[] buffer;
             if (removeEcho)
                 response.replace(0, reallyCommand.length(), "");
             return response;
         }
-        delete[] buffer;
         return std::unexpected(SerialErrorCode::TIMEOUT);
     }
 
@@ -185,11 +184,10 @@ class Serial {
         while (std::chrono::system_clock::now() < endTime) {
             std::this_thread::sleep_for(10ms);
             auto availableSize = ser.available();
-            auto buffer = new char[availableSize + 1];
-            auto size = ser.readBytes(buffer, availableSize, timeout);
+            auto buffer = std::make_unique<char[]>(availableSize + 1);
+            auto size = ser.readBytes(buffer.get(), availableSize, timeout);
             buffer[size] = '\0';
-            auto str = std::string(buffer);
-            delete[] buffer;
+            auto str = std::string(buffer.get());
             if (size > 0)
                 Log("Receive: " + str);
             if (((str.find(expect) != std::string::npos) && ...)) {