diff --git a/kubernetes/src/main/java/io/kubernetes/client/custom/Quantity.java b/kubernetes/src/main/java/io/kubernetes/client/custom/Quantity.java
index b148cfd68a..07274d354f 100644
--- a/kubernetes/src/main/java/io/kubernetes/client/custom/Quantity.java
+++ b/kubernetes/src/main/java/io/kubernetes/client/custom/Quantity.java
@@ -14,7 +14,7 @@
 @JsonAdapter(Quantity.QuantityAdapter.class)
 public class Quantity {
 
-  private final BigDecimal number;
+  private BigDecimal number;
   private Format format;
 
   public enum Format {
@@ -31,6 +31,9 @@ public int getBase() {
     }
   }
 
+  public Quantity() {
+  }
+
   public Quantity(final BigDecimal number, final Format format) {
     this.number = number;
     this.format = format;