diff --git a/CHANGELOG.md b/CHANGELOG.md
index 303971e..51904ff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## [5.4.0] - 2026-01-01
+
+### Changed
+
+- Removed the pelite dependency in favour of a new built-in PE version parsing
+  implementation.
+- Removed the FFI wrapper's direct dependency on libc: `usize` is now used in
+  place of the `libc::size_t` type alias (which is `usize` on all supported
+  platforms).
+- Updated dependency versions in Cargo.lock:
+
+  - Updated esplugin to v6.1.4.
+  - Updated regex to v1.12.2.
+
 ## [5.3.3] - 2025-09-29
 
 ### Fixed
diff --git a/Cargo.lock b/Cargo.lock
index 8593a3e..2b478d9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -309,7 +309,7 @@ checksum = "13dc2df351e3202783a1fe0d44375f7295ffb4049267b0f3018346dc122a1d94"
 
 [[package]]
 name = "loot-condition-interpreter"
-version = "5.3.3"
+version = "5.4.0"
 dependencies = [
  "crc32fast",
  "criterion",
@@ -322,7 +322,7 @@ dependencies = [
 
 [[package]]
 name = "loot-condition-interpreter-ffi"
-version = "5.3.3"
+version = "5.4.0"
 dependencies = [
  "loot-condition-interpreter",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index a8894ec..a302c3f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,7 +29,7 @@ harness = false
 members = ["ffi"]
 
 [workspace.package]
-version = "5.3.3"
+version = "5.4.0"
 authors = ["Oliver Hamlet <oliver@ortham.net>"]
 repository = "https://github.com/loot/loot-condition-interpreter.git"
 license = "MIT"