Updating CHANGELOG for 1.3.1 release.
diff --git a/CHANGELOG b/CHANGELOG
index 3f8e3ab..8629e17 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,17 @@
+Parquet C++ 1.3.1
+--------------------------------------------------------------------------------
+## Bug
+    * [PARQUET-1105] - [CPP] Remove libboost_system dependency 
+    * [PARQUET-1138] - [C++] Fix compilation with Arrow 0.7.1
+    * [PARQUET-1123] - [C++] Update parquet-cpp to use Arrow's AssertArraysEqual
+    * [PARQUET-1121] - C++: DictionaryArrays of NullType cannot be written
+    * [PARQUET-1139] - Add license to cmake_modules/parquet-cppConfig.cmake.in
+
+## Improvement
+    * [PARQUET-1140] - [C++] Fail on RAT errors in CI
+    * [PARQUET-1070] - Add CPack support to the build
+
+
 Parquet C++ 1.3.0
 --------------------------------------------------------------------------------
 ## Bug