diff --git a/powerauth-client-model/pom.xml b/powerauth-client-model/pom.xml
index 50cc85b9b..b24e2f939 100644
--- a/powerauth-client-model/pom.xml
+++ b/powerauth-client-model/pom.xml
@@ -45,6 +45,11 @@
             <artifactId>jackson-annotations</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>com.fasterxml.jackson.core</groupId>
+            <artifactId>jackson-databind</artifactId>
+        </dependency>
+
         <dependency>
             <groupId>io.swagger.core.v3</groupId>
             <artifactId>swagger-annotations-jakarta</artifactId>
diff --git a/powerauth-client-model/src/main/java/com/wultra/security/powerauth/client/model/response/VerifyECDSASignatureResponse.java b/powerauth-client-model/src/main/java/com/wultra/security/powerauth/client/model/response/VerifyECDSASignatureResponse.java
index d6c6371e6..d963c6e33 100644
--- a/powerauth-client-model/src/main/java/com/wultra/security/powerauth/client/model/response/VerifyECDSASignatureResponse.java
+++ b/powerauth-client-model/src/main/java/com/wultra/security/powerauth/client/model/response/VerifyECDSASignatureResponse.java
@@ -18,8 +18,8 @@
 
 package com.wultra.security.powerauth.client.model.response;
 
-import lombok.Builder;
-import lombok.Data;
+import lombok.*;
+import lombok.extern.jackson.Jacksonized;
 
 /**
  * Model class representing response with ECDSA signature verification results.
@@ -27,9 +27,10 @@
  * @author Petr Dvorak, petr@wultra.com
  */
 @Builder
-@Data
+@Getter @ToString @EqualsAndHashCode
+@Jacksonized
 public class VerifyECDSASignatureResponse {
 
-    private boolean signatureValid;
+    private final boolean signatureValid;
 
 }