diff --git a/library.json b/library.json
index 465f5ad..2f1cee2 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
     "name": "SerialReader",
-    "version": "1.0.1",
+    "version": "1.0.0",
     "description": "Helper class for reading Serial input, without blocking",
     "repository":
     {
diff --git a/src/SerialReader.h b/src/SerialReader.h
index fef42e3..d661c95 100644
--- a/src/SerialReader.h
+++ b/src/SerialReader.h
@@ -2,8 +2,8 @@
 
 #include <Arduino.h>
 
+template <size_t bufferLength>
 class SerialReader {
-    static const int bufferLength = 50;
 	char buffer[bufferLength];
 
 public:
@@ -12,8 +12,8 @@ public:
     }
 
 	int readLine(HardwareSerial &serial) {
-		static int pos = 0;
-		int rpos;
+		static size_t pos = 0;
+		size_t rpos;
 		int readCh;
 
 		for (int i = 0, avail = serial.available(); i < avail && (readCh = serial.read()) > 0; i++) {