diff --git a/build.gradle b/build.gradle
index a81b7dd..8d90329 100644
--- a/build.gradle
+++ b/build.gradle
@@ -2,7 +2,7 @@ apply plugin: 'java'
 repositories{
   mavenCentral()
 }
-def releaseVersion = "0.5.7"
+def releaseVersion = "0.5.8"
 def propertyFile = file "src/main/java/w2phtml/project.properties"
 Properties properties = new Properties()
 propertyFile.withReader { properties.load(it) }
@@ -27,6 +27,7 @@ dependencies{
     bundledLibs 'org.libreoffice:juh:5.3.2'
     bundledLibs 'org.libreoffice:ridl:5.3.2'
     bundledLibs 'org.libreoffice:unoil:5.3.2'
+    bundledLibs 'org.json:json:20190722'
     compile 'junit:junit:4.12'
     bundledLibs group: 'org.apache.jena', name: 'jena-core', version: '3.14.0'
     bundledLibs group: 'com.opencsv', name: 'opencsv', version: '5.1'