diff --git a/src/de/caydenno1/xacrypto/misc/Constants.java b/src/de/caydenno1/xacrypto/misc/Constants.java
index 04a1f7a..0452dac 100644
--- a/src/de/caydenno1/xacrypto/misc/Constants.java
+++ b/src/de/caydenno1/xacrypto/misc/Constants.java
@@ -1,7 +1,7 @@
 package de.caydenno1.xacrypto.misc;
 
 public class Constants {
-    public int[] SHA256_K = {
+    public static final int[] SHA256_K = {
             0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5,0x3956c25b,
             0x59f111f1,0x923f82a4,0xab1c5ed5,0xd807aa98,0x12835b01,
             0x243185be,0x550c7dc3,0x72be5d74,0x80deb1fe,0x9bdc06a7,
@@ -17,7 +17,7 @@ public class Constants {
             0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
     };
 
-    public int[] SHA256_H = {
+    public static final int[] SHA256_H = {
             0x6a09e667,0xbb67ae85,0x3c6ef372,0xa54ff53a,
             0x510e527f,0x9b05688c,0x1f83d9ab,0x5be0cd19
     };