diff --git a/README.md b/README.md
index 3cebad4..c5d6a46 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # signNow API Java SDK
-## v3.2.0
+## v3.2.1
 
 [![Java Version](https://img.shields.io/badge/codebase-java--11-yellowgreen)](https://www.java.com/)
 
diff --git a/pom.xml b/pom.xml
index a0060d4..f9bace2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>com.signnow</groupId>
     <artifactId>signnow-java-sdk</artifactId>
-    <version>3.1.0</version>
+    <version>3.2.1</version>
     <packaging>jar</packaging>
     <name>signnow-java-sdk</name>
     <description>SignNow official Java SDK</description>
diff --git a/src/main/java/com/signnow/api/document/response/data/fieldinvite/FieldInvite.java b/src/main/java/com/signnow/api/document/response/data/fieldinvite/FieldInvite.java
index bbab56d..7c47dbd 100644
--- a/src/main/java/com/signnow/api/document/response/data/fieldinvite/FieldInvite.java
+++ b/src/main/java/com/signnow/api/document/response/data/fieldinvite/FieldInvite.java
@@ -10,6 +10,7 @@
 package com.signnow.api.document.response.data.fieldinvite;
 
 import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.signnow.core.data.ApiData;
 import java.util.LinkedHashMap;
@@ -20,6 +21,7 @@
 /**
  * This class represents a FieldInvite which is a part of the signNow SDK API client.
  */
+@JsonIgnoreProperties(ignoreUnknown = true)
 public final class FieldInvite extends ApiData {
 
   /**
diff --git a/src/main/java/com/signnow/core/config/ConfigRepository.java b/src/main/java/com/signnow/core/config/ConfigRepository.java
index b13fb7b..b92534c 100644
--- a/src/main/java/com/signnow/core/config/ConfigRepository.java
+++ b/src/main/java/com/signnow/core/config/ConfigRepository.java
@@ -16,7 +16,7 @@
 public class ConfigRepository {
 
   private static final int READ_TIMEOUT = 15;
-  private static final String CLIENT_NAME = "SignNowApiClient/v3.2.0 (Java)";
+  private static final String CLIENT_NAME = "SignNowApiClient/v3.2.1 (Java)";
   private static final String DEFAULT_DOWNLOADS_DIR = "./src/main/resources/downloads";
 
   private final Map<String, String> configMap;
diff --git a/src/main/java/com/signnow/core/response/FileDownloader.java b/src/main/java/com/signnow/core/response/FileDownloader.java
index a6f7b31..7487cf2 100644
--- a/src/main/java/com/signnow/core/response/FileDownloader.java
+++ b/src/main/java/com/signnow/core/response/FileDownloader.java
@@ -36,6 +36,13 @@ public static File saveFile(ResponseData downloadData) throws IOException {
             ? downloadDirectory + fileName
             : downloadDirectory + "/" + fileName;
 
+    File directory = new File(downloadDirectory);
+    if (!directory.exists()) {
+      if (!directory.mkdirs()) {
+        throw new IOException("Failed to create directory: " + downloadDirectory);
+      }
+    }
+
     try (FileOutputStream fos = new FileOutputStream(filePath)) {
       byte[] fileContent = downloadData.getContent();
       fos.write(fileContent);