diff --git a/CHANGES.md b/CHANGES.md
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,10 +1,18 @@
 Seonbi changelog
 ================
 
+Version 0.3.1
+-------------
+
+Released on November 27, 2021.
+
+ -  Added prebuilt executable binaries for Apple Silicon (macos-arm64).
+
+
 Version 0.3.0
 -------------
 
-Released November 18, 2021.
+Released on November 18, 2021.
 
  -  Since this version, it requires GHC 8.8.* at least, and supports GHC 9.0.*
     at most.
diff --git a/seonbi.cabal b/seonbi.cabal
--- a/seonbi.cabal
+++ b/seonbi.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           seonbi
-version:        0.3.0
+version:        0.3.1
 synopsis:       SmartyPants for Korean language
 description:    Please see the README.md on GitHub at <https://github.com/dahlia/seonbi>.
 category:       Text