diff --git a/CHANGELOG.md b/CHANGELOG.md
index c27b44c4..2bf05b8a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## Version 9.1.4
+
+- [Improvement] Improve optimization of APNG files (reductions still not supported yet).
+- [Improvement] Improve reductions for small images and ensure consistent results for repeat runs.
+- [Build] Add feature `system-libdeflate` to use the system-installed version of libdeflate.
+- [Misc] Strip C2PA metadata by default.
+
 ## Version 9.1.3
 
 - [Feature] Add `--zi` option to control the number of Zopfli iterations.
diff --git a/Cargo.lock b/Cargo.lock
index 69df3be2..74b9c945 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -399,7 +399,7 @@ checksum = "1261fe7e33c73b354eab43b1273a57c8f967d0391e80353e51f764ac02cf6775"
 
 [[package]]
 name = "oxipng"
-version = "9.1.3"
+version = "9.1.4"
 dependencies = [
  "bitvec",
  "clap",
diff --git a/Cargo.toml b/Cargo.toml
index 974db6ed..c86dae2f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,7 +20,7 @@ homepage = "https://github.com/shssoichiro/oxipng"
 license = "MIT"
 name = "oxipng"
 repository = "https://github.com/shssoichiro/oxipng"
-version = "9.1.3"
+version = "9.1.4"
 rust-version = "1.74.0"
 
 [badges]
diff --git a/MANUAL.txt b/MANUAL.txt
index 9700f789..95b9abed 100644
--- a/MANUAL.txt
+++ b/MANUAL.txt
@@ -1,4 +1,4 @@
-oxipng 9.1.3
+oxipng 9.1.4
 Losslessly improve compression of PNG files
 
 Usage: oxipng [OPTIONS] <files>...