diff --git a/src/main/java/pl/rehost/realWeather/RealWeather.java b/src/main/java/pl/rehost/realWeather/RealWeather.java
index 683db34..f95e510 100644
--- a/src/main/java/pl/rehost/realWeather/RealWeather.java
+++ b/src/main/java/pl/rehost/realWeather/RealWeather.java
@@ -21,7 +21,7 @@ public class RealWeather extends JavaPlugin {
     private BukkitTask task;
 
     private List<String> affectedWorlds;
-    private Map<String, String> messages = new HashMap<>();
+    private final Map<String, String> messages = new HashMap<>();
 
     @Override
     public void onEnable() {
diff --git a/src/main/java/pl/rehost/realWeather/ScheduledWeatherStateUpdateHandler.java b/src/main/java/pl/rehost/realWeather/ScheduledWeatherStateUpdateHandler.java
index f2bfe6a..02aa73f 100644
--- a/src/main/java/pl/rehost/realWeather/ScheduledWeatherStateUpdateHandler.java
+++ b/src/main/java/pl/rehost/realWeather/ScheduledWeatherStateUpdateHandler.java
@@ -15,7 +15,7 @@
 
 public class ScheduledWeatherStateUpdateHandler implements Runnable {
 
-    private RealWeather plugin;
+    private final RealWeather plugin;
 
 
     ScheduledWeatherStateUpdateHandler(RealWeather plugin) {
diff --git a/src/main/java/pl/rehost/realWeather/ScheduledWeatherUpdateHandler.java b/src/main/java/pl/rehost/realWeather/ScheduledWeatherUpdateHandler.java
index 0d32141..e8cdf2c 100644
--- a/src/main/java/pl/rehost/realWeather/ScheduledWeatherUpdateHandler.java
+++ b/src/main/java/pl/rehost/realWeather/ScheduledWeatherUpdateHandler.java
@@ -2,8 +2,8 @@
 
 public class ScheduledWeatherUpdateHandler implements Runnable {
 
-    private int weatherID;
-    private RealWeather plugin;
+    private final int weatherID;
+    private final RealWeather plugin;
 
     ScheduledWeatherUpdateHandler(RealWeather plugin, int weatherID) {
         this.weatherID = weatherID;