diff --git a/CHANGELOG.md b/CHANGELOG.md
index d259d7c..168a9bc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [3.1.3] - 2025-01-19
+
 ### Fixed
 - rulesファイルに変換選択状態から変換を確定しつつAsciiモードや全角英数モードへ遷移する処理を追加。 (Github Issue#257)
 
diff --git a/Cargo.toml b/Cargo.toml
index 890945d..9d4f274 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "cskk"
 # Have to also change the deb package destination filename below
-version = "3.1.2"
+version = "3.1.3"
 authors = ["Naoaki Iwakiri <naokiri@gmail.com>"]
 license = "GPL-3.0-or-later"
 edition = "2018"
@@ -78,7 +78,7 @@ preserve-symlinks = true
 # x86_64 specific, depends on cargo-c too.
 # Includes development things like static link lib and header files too.
 assets = [["assets/**/*", "usr/local/share/libcskk", "644"],
-    ["target/x86_64-unknown-linux-gnu/release/libcskk.so", "usr/local/lib/cskk/libcskk.so.3.1.2", "755"],
+    ["target/x86_64-unknown-linux-gnu/release/libcskk.so", "usr/local/lib/cskk/libcskk.so.3.1.3", "755"],
     ["deb_assets/libcskk.*", "usr/local/lib/cskk", "777"],
     ["target/x86_64-unknown-linux-gnu/release/libcskk.a", "usr/local/lib/cskk/", "644"],
     ["target/x86_64-unknown-linux-gnu/release/cskk.pc", "usr/local/lib/pkgconfig/", "644"],