diff --git a/LICENSE b/LICENSE
index 5f44edf..3a20a5b 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright 2022 David Lloyd <dlloydev@testcor.ca>
+Copyright 2023 David Lloyd <dlloydev@testcor.ca>
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
diff --git a/examples/PID_AVR_Basic_Interrupt_TIMER/PID_AVR_Basic_Interrupt_TIMER.ino b/examples/PID_AVR_Basic_Interrupt_TIMER/PID_AVR_Basic_Interrupt_TIMER.ino
index 5577371..2b06d05 100644
--- a/examples/PID_AVR_Basic_Interrupt_TIMER/PID_AVR_Basic_Interrupt_TIMER.ino
+++ b/examples/PID_AVR_Basic_Interrupt_TIMER/PID_AVR_Basic_Interrupt_TIMER.ino
@@ -2,8 +2,8 @@
    PID AVR Basic Interrupt TIMER Example
    Reading analog input 0 to control analog PWM output 3
  ********************************************************/
-#include "TimerOne.h" // https://github.com/PaulStoffregen/TimerOne
-#include "QuickPID.h"
+#include <TimerOne.h> // https://github.com/PaulStoffregen/TimerOne
+#include <QuickPID.h>
 
 #define PIN_INPUT 0
 #define PIN_OUTPUT 3
diff --git a/examples/PID_AVR_Basic_Software_TIMER/PID_AVR_Basic_Software_TIMER.ino b/examples/PID_AVR_Basic_Software_TIMER/PID_AVR_Basic_Software_TIMER.ino
index e64c3d5..89ce0a1 100644
--- a/examples/PID_AVR_Basic_Software_TIMER/PID_AVR_Basic_Software_TIMER.ino
+++ b/examples/PID_AVR_Basic_Software_TIMER/PID_AVR_Basic_Software_TIMER.ino
@@ -2,8 +2,8 @@
    PID AVR Basic Software TIMER Example
    Reading analog input 0 to control analog PWM output 3
  ********************************************************/
-#include "Ticker.h" // https://github.com/sstaub/Ticker
-#include "QuickPID.h"
+#include <Ticker.h> // https://github.com/sstaub/Ticker
+#include <QuickPID.h>
 void runPid();
 
 #define PIN_INPUT 0
diff --git a/examples/PID_AdaptiveTunings/PID_AdaptiveTunings.ino b/examples/PID_AdaptiveTunings/PID_AdaptiveTunings.ino
index 4908fcb..018c647 100644
--- a/examples/PID_AdaptiveTunings/PID_AdaptiveTunings.ino
+++ b/examples/PID_AdaptiveTunings/PID_AdaptiveTunings.ino
@@ -7,7 +7,7 @@
    setpoint and more agressive tuning parameters when we're farther away.
  ******************************************************************************/
 
-#include "QuickPID.h"
+#include <QuickPID.h>
 
 #define PIN_INPUT 0
 #define PIN_OUTPUT 3
diff --git a/examples/PID_Basic/PID_Basic.ino b/examples/PID_Basic/PID_Basic.ino
index 73b2624..5afee18 100644
--- a/examples/PID_Basic/PID_Basic.ino
+++ b/examples/PID_Basic/PID_Basic.ino
@@ -3,7 +3,7 @@
    Reading analog input 0 to control analog PWM output 3
  ********************************************************/
 
-#include "QuickPID.h"
+#include <QuickPID.h>
 
 #define PIN_INPUT 0
 #define PIN_OUTPUT 3
diff --git a/examples/PID_Controller_Options/PID_Controller_Options.ino b/examples/PID_Controller_Options/PID_Controller_Options.ino
index f413dab..abbf9a8 100644
--- a/examples/PID_Controller_Options/PID_Controller_Options.ino
+++ b/examples/PID_Controller_Options/PID_Controller_Options.ino
@@ -3,7 +3,7 @@
   Documentation (GitHub): https://github.com/Dlloydev/QuickPID
  **************************************************************************************/
 
-#include "QuickPID.h"
+#include <QuickPID.h>
 
 const byte inputPin = 0;
 const byte outputPin = 3;
diff --git a/library.json b/library.json
index de004bb..02c37c6 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
   "name": "QuickPID",
-  "version": "3.1.2",
+  "version": "3.1.3",
   "description": "A fast PID controller with multiple options. Various Integral anti-windup, Proportional, Derivative and timer control modes.",
   "keywords": "PID, controller, signal, autotune, tuner, stune",
   "repository":
diff --git a/library.properties b/library.properties
index f75d60f..a1ee3e8 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=QuickPID
-version=3.1.2
+version=3.1.3
 author=David Lloyd
 maintainer=David Lloyd <dlloydev@testcor.ca>
 sentence=A fast PID controller with multiple options. Various Integral anti-windup, Proportional and Derivative control modes.
diff --git a/src/QuickPID.cpp b/src/QuickPID.cpp
index 3dfdcca..536dd75 100644
--- a/src/QuickPID.cpp
+++ b/src/QuickPID.cpp
@@ -1,5 +1,5 @@
 /**********************************************************************************
-   QuickPID Library for Arduino - Version 3.1.2
+   QuickPID Library for Arduino - Version 3.1.3
    by dlloydev https://github.com/Dlloydev/QuickPID
    Based on the Arduino PID_v1 Library. Licensed under the MIT License.
  **********************************************************************************/
diff --git a/src/QuickPID.h b/src/QuickPID.h
index 394b7f3..35a786f 100644
--- a/src/QuickPID.h
+++ b/src/QuickPID.h
@@ -14,6 +14,9 @@ class QuickPID {
 
     // commonly used functions ************************************************************************************
 
+    // Default constructor
+    QuickPID() {}
+
     // Constructor. Links the PID to Input, Output, Setpoint, initial tuning parameters and control modes.
     QuickPID(float *Input, float *Output, float *Setpoint, float Kp, float Ki, float Kd,
              pMode pMode, dMode dMode, iAwMode iAwMode, Action Action);