diff --git a/src/main/java/dice/sinanya/tools/makedata/RandomInt.java b/src/main/java/dice/sinanya/tools/makedata/RandomInt.java
index 0c2023bb69b2bcf4800515c8038dfe0bdfc50800..11105d54178b22e47e67a84e8f06ef5b3898cfe7 100644
--- a/src/main/java/dice/sinanya/tools/makedata/RandomInt.java
+++ b/src/main/java/dice/sinanya/tools/makedata/RandomInt.java
@@ -28,7 +28,11 @@ import static java.lang.Math.max;
 public class RandomInt {
     private static final Logger log = LogManager.getLogger(RandomInt.class.getName());
     private static final Random r = new Random();
+    private static final Random R_DEFAULT = new Random(r.nextLong());
+    private static final MersenneTwister MERSENNE_WISTER = new MersenneTwister(r.nextLong());
+    
 
+    
     private RandomInt() {
         throw new IllegalStateException("Utility class");
     }
@@ -100,13 +104,13 @@ public class RandomInt {
     }
 
     public static int randomDefault(int lowest, int highest) {
-        Random random = new Random();
-        return random.nextInt(highest - lowest + 1) + lowest;
+//        Random random = new Random();
+        return R_DEFAULT.nextInt(highest - lowest + 1) + lowest;
     }
 
     public static int randomMersenne(int lowest, int highest) {
-        MersenneTwister mersenneTwister = new MersenneTwister(randomDefault(0, 1000));
-        return mersenneTwister.nextInt(highest - lowest + 1) + lowest;
+//        MersenneTwister mersenneTwister = new MersenneTwister(randomDefault(0, 1000));
+        return MERSENNE_WISTER.nextInt(highest - lowest + 1) + lowest;
     }