diff --git a/CHANGELOG b/CHANGELOG
index 44bad5c8..e76b9b81 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,6 @@
 = LitleOnline CHANGELOG
 
+==Version 8.31.1 (April 24, 2018)
 * BugFix: Set content-type to text/xml; charset=UTF-8
 
 == Version 8.31.0 (March 16, 2018)
diff --git a/gradle.properties b/gradle.properties
index 176779ac..1bc8e039 100755
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,5 @@
 DIST_DIR_15=build/dist/java15
-JAR_VERSION=8.31.0
+JAR_VERSION=8.31.1
 KIT_DIR=build/kit/java15
 KIT_DEPENDENCIES_DIR=build/kit/java15/dependencies
 OPENSFTP_DIR=lib/opensftp-0.3.0
diff --git a/src/main/java/com/litle/sdk/Versions.java b/src/main/java/com/litle/sdk/Versions.java
index 36ba7e21..f5142b25 100755
--- a/src/main/java/com/litle/sdk/Versions.java
+++ b/src/main/java/com/litle/sdk/Versions.java
@@ -3,6 +3,6 @@
 public class Versions {
 
     public static final String XML_VERSION="8.31";
-    public static final String SDK_VERSION="Java;8.31.0";
+    public static final String SDK_VERSION="Java;8.31.1";
 
 }