diff --git a/CHANGES.markdown b/CHANGES.markdown
index ad0eed4..e6aab67 100644
--- a/CHANGES.markdown
+++ b/CHANGES.markdown
@@ -1,5 +1,7 @@
 # master (unreleased)
 
+# 1.3.13
+
 * Updated with `tzdata-2021c` ([@panthomakos][])
 
 # 1.3.12
diff --git a/lib/timezone/version.rb b/lib/timezone/version.rb
index 0056cfd..cc26542 100644
--- a/lib/timezone/version.rb
+++ b/lib/timezone/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Timezone
-  VERSION = '1.3.12'.freeze
+  VERSION = '1.3.13'.freeze
 end