diff --git a/CHANGELOG.md b/CHANGELOG.md
index 01feef4e..3fd7b094 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,11 @@
-Version 3.1.1-dev
+Version 3.1.2-dev
 -----------------
 
+Nothing yet.
+
+Version 3.1.1 (2017-09-02)
+--------------------------
+
 ### Fixed
 
 * Fixed syntax error on comment after brace-style namespace declaration. (#412)