diff --git a/src/main/java/com/casper/sdk/model/deploy/executabledeploy/StoredVersionedContractByHash.java b/src/main/java/com/casper/sdk/model/deploy/executabledeploy/StoredVersionedContractByHash.java
index 365c7686..c99dbc4f 100644
--- a/src/main/java/com/casper/sdk/model/deploy/executabledeploy/StoredVersionedContractByHash.java
+++ b/src/main/java/com/casper/sdk/model/deploy/executabledeploy/StoredVersionedContractByHash.java
@@ -5,6 +5,7 @@
 import com.fasterxml.jackson.annotation.JsonTypeName;
 import dev.oak3.sbs4j.SerializerBuffer;
 import lombok.*;
+import org.bouncycastle.util.encoders.Hex;
 
 import java.util.List;
 
@@ -41,6 +42,6 @@ public byte getOrder() {
 
     @Override
     protected void serializeCustom(final SerializerBuffer ser) {
-        ser.writeString(getHash());
+        ser.writeByteArray(Hex.decode(getHash()));
     }
 }
diff --git a/src/test/java/com/casper/sdk/model/deploy/executabledeploy/StoredVersionedContractByHashTest.java b/src/test/java/com/casper/sdk/model/deploy/executabledeploy/StoredVersionedContractByHashTest.java
index b58f1de3..82437482 100644
--- a/src/test/java/com/casper/sdk/model/deploy/executabledeploy/StoredVersionedContractByHashTest.java
+++ b/src/test/java/com/casper/sdk/model/deploy/executabledeploy/StoredVersionedContractByHashTest.java
@@ -59,7 +59,7 @@ void serializeStoredVersionedContractByHashTest() throws Exception {
 
         final SerializerBuffer serializerBuffer = new SerializerBuffer();
         versionedContractByHash.serialize(serializerBuffer, Target.BYTE);
-        final String expectedBytes = "0340000000393231373364343937343463373930643437653530643031316438396531623561333365643264396661653864393435393332353232346438663938663365350101000000080000007472616e7366657202000000030000006f6e650400000001000000010300000074776f040000000200000001";
+        final String expectedBytes = "0392173d49744c790d47e50d011d89e1b5a33ed2d9fae8d9459325224d8f98f3e50101000000080000007472616e7366657202000000030000006f6e650400000001000000010300000074776f040000000200000001";
         final String actual = Hex.encode(serializerBuffer.toByteArray());
         assertThat(actual, is(expectedBytes));
     }