diff --git a/BlinkID/package.json b/BlinkID/package.json
index 15266a4..81f5129 100644
--- a/BlinkID/package.json
+++ b/BlinkID/package.json
@@ -1,6 +1,6 @@
 {
   "name": "blinkid-cordova",
-  "version": "5.8.0",
+  "version": "5.8.1",
   "description": "A small and powerful ID card scanning library",
   "cordova": {
     "id": "blinkid-cordova",
diff --git a/BlinkID/plugin.xml b/BlinkID/plugin.xml
index ab8094e..4d72501 100644
--- a/BlinkID/plugin.xml
+++ b/BlinkID/plugin.xml
@@ -2,7 +2,7 @@
 <plugin xmlns="http://apache.org/cordova/ns/plugins/1.0"
         xmlns:android="http://schemas.android.com/apk/res/android"
         id="blinkid-cordova" 
-        version="5.8.0">
+        version="5.8.1">
 
     <name>BlinkIdScanner</name>
     <description>A small and powerful ID card scanning library</description>
diff --git a/BlinkID/src/ios/sources/Recognizers/Wrappers/MBUsdlCombinedRecognizerWrapper.m b/BlinkID/src/ios/sources/Recognizers/Wrappers/MBUsdlCombinedRecognizerWrapper.m
index 37af752..2b681ab 100644
--- a/BlinkID/src/ios/sources/Recognizers/Wrappers/MBUsdlCombinedRecognizerWrapper.m
+++ b/BlinkID/src/ios/sources/Recognizers/Wrappers/MBUsdlCombinedRecognizerWrapper.m
@@ -73,7 +73,7 @@ -(NSDictionary *) serializeResult {
     NSMutableDictionary* jsonResult = (NSMutableDictionary*)[super serializeResult];
     [jsonResult setValue:[self.result.digitalSignature base64EncodedStringWithOptions:0] forKey:@"digitalSignature"];
     [jsonResult setValue:[NSNumber numberWithUnsignedInteger:self.result.digitalSignatureVersion] forKey:@"digitalSignatureVersion"];
-    [jsonResult setValue:[NSNumber numberWithBool:self.result.documentDataMatch] forKey:@"documentDataMatch"];
+    [jsonResult setValue:[NSNumber numberWithInteger:self.result.documentDataMatch] forKey:@"documentDataMatch"];
     [jsonResult setValue:[MBSerializationUtils encodeMBImage:self.result.faceImage] forKey:@"faceImage"];
     [jsonResult setValue:[MBSerializationUtils encodeMBImage:self.result.fullDocumentImage] forKey:@"fullDocumentImage"];
     [jsonResult setValue:[NSNumber numberWithBool:self.result.scanningFirstSideDone] forKey:@"scanningFirstSideDone"];
diff --git a/Release notes.md b/Release notes.md
index 8640f1d..7b90cff 100644
--- a/Release notes.md	
+++ b/Release notes.md	
@@ -1,3 +1,6 @@
+## 5.8.1
+- Fixed `documentDataMatch` serialization.
+
 ## 5.8.0
 - Updated to [Android SDK v5.8.0](https://github.com/BlinkID/blinkid-android/releases/tag/v5.8.0) and [iOS SDK v5.8.0](https://github.com/BlinkID/blinkid-ios/releases/tag/v5.8.0)