diff --git a/History.md b/History.md
index 137e1fc6..e0674fd5 100644
--- a/History.md
+++ b/History.md
@@ -2,6 +2,12 @@
 
 ### [Unreleased]
 
+### 5.3.0
+
+- Unpin `faraday` from v1, upgrade to v2. (#1012)
+  Note that if you can't migrate other plugins from `faraday` v1 yet, need to keep
+  fluent-plugin-elasticsearch v5.2.5.
+
 ### 5.2.5
 
 - Update the name of parameter about `thread_pool`.
diff --git a/README.md b/README.md
index 24b80e65..28e67172 100644
--- a/README.md
+++ b/README.md
@@ -125,6 +125,8 @@ Current maintainers: [Hiroshi Hatake | @cosmo0920](https://github.com/cosmo0920)
 | >= 2.0.0 && < 3.2.3          | >= v0.14.20 | >= 2.1 |
 |  < 2.0.0                     | >= v0.12.0  | >= 1.9 |
 
+NOTE: Since fluent-plugin-elasticsearch 5.3.0, it requires faraday 2.0 or later.
+
 NOTE: For v0.12 version, you should use 1.x.y version. Please send patch into v0.12 branch if you encountered 1.x version's bug.
 
 NOTE: This documentation is for fluent-plugin-elasticsearch 2.x or later. For 1.x documentation, please see [v0.12 branch](https://github.com/uken/fluent-plugin-elasticsearch/tree/v0.12).
diff --git a/fluent-plugin-elasticsearch.gemspec b/fluent-plugin-elasticsearch.gemspec
index a7eb2626..6a5d23f9 100644
--- a/fluent-plugin-elasticsearch.gemspec
+++ b/fluent-plugin-elasticsearch.gemspec
@@ -3,7 +3,7 @@ $:.push File.expand_path('../lib', __FILE__)
 
 Gem::Specification.new do |s|
   s.name          = 'fluent-plugin-elasticsearch'
-  s.version       = '5.2.5'
+  s.version       = '5.3.0'
   s.authors       = ['diogo', 'pitr', 'Hiroshi Hatake']
   s.email         = ['pitr.vern@gmail.com', 'me@diogoterror.com', 'cosmo0920.wp@gmail.com']
   s.description   = %q{Elasticsearch output plugin for Fluent event collector}