diff --git a/CHANGELOG.md b/CHANGELOG.md
index 84c4cbc..27727c5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.3.31] - 2024-09-23
+
+### Fixed
+
+- Remove double `cargo:` prefix from linker line (#168).
+
 ## [0.3.30] - 2024-02-14
 
 ### Changed
diff --git a/Cargo.toml b/Cargo.toml
index e5c9c40..5e73117 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "pkg-config"
-version = "0.3.30"
+version = "0.3.31"
 authors = ["Alex Crichton <alex@alexcrichton.com>"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/rust-lang/pkg-config-rs"