Update change log (#256)

Signed-off-by: Gao Hongtao <hanahmily@gmail.com>
diff --git a/CHANGES.md b/CHANGES.md
index 835a95c..065b192 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,17 @@
 
 Release Notes.
 
+## 0.3.1
+
+### Bugs
+
+- Fix the broken of schema chain.
+- Add a timeout to all go leaking checkers.
+
+### Chores
+
+- Bump golang.org/x/net from 0.2.0 to 0.7.0.
+
 ## 0.3.0
 
 ### Features