diff --git a/src/main/java/io/fusionauth/der/TagClass.java b/src/main/java/io/fusionauth/der/TagClass.java
index 63ea7e6..a8e80f8 100644
--- a/src/main/java/io/fusionauth/der/TagClass.java
+++ b/src/main/java/io/fusionauth/der/TagClass.java
@@ -50,7 +50,7 @@ public enum TagClass {
    */
   Private(0b11000000); // 192
 
-  public int value;
+  public final int value;
 
   TagClass(int value) {
     this.value = value;
diff --git a/src/main/java/io/fusionauth/jwt/domain/Algorithm.java b/src/main/java/io/fusionauth/jwt/domain/Algorithm.java
index deaa0d8..e9ab088 100644
--- a/src/main/java/io/fusionauth/jwt/domain/Algorithm.java
+++ b/src/main/java/io/fusionauth/jwt/domain/Algorithm.java
@@ -96,7 +96,7 @@ public enum Algorithm {
    */
   none("None");
 
-  public String algorithm;
+  public final String algorithm;
 
   Algorithm(String algorithm) {
     this.algorithm = algorithm;