diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3a12eca6..3bad622c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,18 @@
 ## [Unreleased]
 
+## [3.13.0] - 2024-04-01
+
+## Changed
+
+- Memory sampler was reporting memory usage stats in KiB, but with bytes for the
+  unit metadata. This change corrects the sampler to report memory usage in
+  bytes. This fix is disruptive as it will cause the memory stats to change.
+  (#222)
+
 ## [3.12.0] - 2024-03-28
 
 ## Added
+
 - MacOS cpu usage sampling. (#203)
 - Metric unit annotations are added and exposed as metadata.
 - Logs version number on startup. (#213)
@@ -197,7 +207,8 @@
 - Rewritten implementation of Rezolus using libbpf-rs and perf-event2 to provide
   a more modern approach to BPF and Perf Event instrumentation. 
 
-[unreleased]: https://github.com/iopsystems/rezolus/compare/v3.12.0...HEAD
+[unreleased]: https://github.com/iopsystems/rezolus/compare/v3.13.0...HEAD
+[3.13.0]: https://github.com/iopsystems/rezolus/compare/v3.12.0...v3.13.0
 [3.12.0]: https://github.com/iopsystems/rezolus/compare/v3.11.0...v3.12.0
 [3.11.0]: https://github.com/iopsystems/rezolus/compare/v3.10.3...v3.11.0
 [3.10.3]: https://github.com/iopsystems/rezolus/compare/v3.10.2...v3.10.3
diff --git a/Cargo.lock b/Cargo.lock
index b6fcc531..bc94b918 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1494,7 +1494,7 @@ checksum = "adad44e29e4c806119491a7f06f03de4d1af22c3a680dd47f1e6e179439d1f56"
 
 [[package]]
 name = "rezolus"
-version = "3.12.1-alpha.0"
+version = "3.13.0"
 dependencies = [
  "backtrace",
  "chrono",
@@ -1842,7 +1842,7 @@ dependencies = [
 
 [[package]]
 name = "systeminfo"
-version = "3.12.1-alpha.0"
+version = "3.13.0"
 dependencies = [
  "serde",
  "serde_json",
diff --git a/Cargo.toml b/Cargo.toml
index e64c5a76..d7cef878 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2021"
 description = "High resolution systems performance telemetry agent"
 
 [workspace.package]
-version = "3.12.1-alpha.0"
+version = "3.13.0"
 license = "MIT OR Apache-2.0"
 
 [dependencies]