diff --git a/CHANGELOG.md b/CHANGELOG.md
index 929476fb..35cbdab5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## v0.8.6 (released at 3/17/2017)
+
+* Support Rails 5.1 officially.
+* make sure the formfile can be created outside. by @mechiland #181
+
 ## v0.8.5 (released at 3/14/2017)
 
 * Support mass send API #176
diff --git a/VERSION b/VERSION
index bbde4bee..120f5321 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.8.5
\ No newline at end of file
+0.8.6
\ No newline at end of file