diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ab1c5b6..3ee91aa3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 ## Changelog
 
-### Unreleased
+### v1.4.0 (2023-12-27)
 
 * The license of fend has changed. As of v1.4.0, fend is available under
     the GPL 3.0 (or later). See
diff --git a/Cargo.lock b/Cargo.lock
index 66c4ce5a..f7db0e3f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -141,7 +141,7 @@ dependencies = [
 
 [[package]]
 name = "fend"
-version = "1.3.3"
+version = "1.4.0"
 dependencies = [
  "console",
  "ctrlc",
@@ -158,11 +158,11 @@ dependencies = [
 
 [[package]]
 name = "fend-core"
-version = "1.3.3"
+version = "1.4.0"
 
 [[package]]
 name = "fend-wasm"
-version = "1.3.3"
+version = "1.4.0"
 dependencies = [
  "fend-core",
  "instant",
diff --git a/Cargo.toml b/Cargo.toml
index 647cf77a..dee82810 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ members = ["cli", "core", "wasm"]
 resolver = "2"
 
 [workspace.package]
-version = "1.3.3"
+version = "1.4.0"
 description = "Arbitrary-precision unit-aware calculator"
 edition = "2021"
 homepage = "https://github.com/printfn/fend"
@@ -13,7 +13,7 @@ categories = ["command-line-utilities", "mathematics", "science"]
 license = "GPL-3.0-or-later"
 
 [workspace.dependencies]
-fend-core = { version = "1.3.3", path = "core" }
+fend-core = { version = "1.4.0", path = "core" }
 
 [profile.release]
 lto = true