diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0f9b48fe..3836563b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ All dates in this file are given in the [UTC time zone](https://en.wikipedia.org
 
 ## Unreleased
 
+## v2023.9.0 - 2023-12-30
+
+(this release involves no changes from v2023.9.0-beta.2; it's just a promotion of v2023.9.0-beta.2 to a stable release)
+
 ## v2023.9.0-beta.2 - 2023-12-02
 
 ### Changed
diff --git a/requirements/repositories/github.com/PlanktoScope/device-pkgs/forklift-version-lock.yml b/requirements/repositories/github.com/PlanktoScope/device-pkgs/forklift-version-lock.yml
index 33a13865..b62a79c8 100644
--- a/requirements/repositories/github.com/PlanktoScope/device-pkgs/forklift-version-lock.yml
+++ b/requirements/repositories/github.com/PlanktoScope/device-pkgs/forklift-version-lock.yml
@@ -1,4 +1,4 @@
 type: version
-tag: v2023.9.0-beta.2
-timestamp: "20231202003802"
-commit: d73a95ce6d24a11fe4ea1e543ed14a4e4b6f2f44
+tag: v2023.9.0
+timestamp: "20231230000253"
+commit: 6fca53e3e8b6550f5c9677a644e7fccb770876cd