diff --git a/.travis.yml b/.travis.yml
index 6c4207750c1b4152ecb1002f4d53bdeeb074bb06..694ac64bfc355467f8dd28823fcc7b7fded7711e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -16,3 +16,4 @@ deploy:
   on:
     repo: medcl/elasticsearch-analysis-ik
     tags: true
+group: deprecated-2017Q4
diff --git a/README.md b/README.md
index 1981b8c2dda2e647effcce75aab88c7db943cb24..3e1cb67dbf476340bb115b515d96e857d8cb686b 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,7 @@ Versions
 IK version | ES version
 -----------|-----------
 master | 6.x -> master
+6.2.1| 6.2.1
 6.1.3| 6.1.3
 5.6.4| 5.6.4
 5.5.3| 5.5.3
@@ -39,7 +40,7 @@ Install
 
 * optional 2 - use elasticsearch-plugin to install ( version > v5.5.1 ):
 
-    `./bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v6.1.3/elasticsearch-analysis-ik-6.1.3.zip`
+    `./bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v6.2.1/elasticsearch-analysis-ik-6.2.1.zip`
 
 2.restart elasticsearch
 
diff --git a/pom.xml b/pom.xml
index 3321fd9bb6cd48acfa2dd884dfbe90dafa88bf04..88a79c60a58c7d664ca6d4703f6742d2668ca0f5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -12,7 +12,7 @@
     <inceptionYear>2011</inceptionYear>
 
     <properties>
-        <elasticsearch.version>6.1.3</elasticsearch.version>
+        <elasticsearch.version>6.2.1</elasticsearch.version>
         <maven.compiler.target>1.8</maven.compiler.target>
         <elasticsearch.assembly.descriptor>${project.basedir}/src/main/assemblies/plugin.xml</elasticsearch.assembly.descriptor>
         <elasticsearch.plugin.name>analysis-ik</elasticsearch.plugin.name>