diff --git a/.github/release-please/release-please-manifest.json b/.github/release-please/release-please-manifest.json
index dfc6542ab7..90d40bad1f 100644
--- a/.github/release-please/release-please-manifest.json
+++ b/.github/release-please/release-please-manifest.json
@@ -1,5 +1,5 @@
 {
-  "lib/fixtures": "0.3.0",
+  "lib/fixtures": "0.4.0",
   "lib/ocrypto": "0.7.0",
   "lib/flattening": "0.1.3",
   "lib/identifier": "0.2.0",
diff --git a/lib/fixtures/CHANGELOG.md b/lib/fixtures/CHANGELOG.md
index 7d55a92c54..90d9bbf610 100644
--- a/lib/fixtures/CHANGELOG.md
+++ b/lib/fixtures/CHANGELOG.md
@@ -1,5 +1,17 @@
 # Changelog
 
+## [0.4.0](https://github.com/opentdf/platform/compare/lib/fixtures/v0.3.0...lib/fixtures/v0.4.0) (2025-12-09)
+
+
+### Features
+
+* Update Go toolchain version to 1.24.11 across all modules ([#2943](https://github.com/opentdf/platform/issues/2943)) ([a960eca](https://github.com/opentdf/platform/commit/a960eca78ab8870599f0aa2a315dbada355adf20))
+
+
+### Bug Fixes
+
+* **deps:** bump toolchain to go1.24.9 for CVEs found by govulncheck ([#2849](https://github.com/opentdf/platform/issues/2849)) ([23f76c0](https://github.com/opentdf/platform/commit/23f76c034cfb4c325d868eb96c95ba616e362db4))
+
 ## [0.3.0](https://github.com/opentdf/platform/compare/lib/fixtures/v0.2.10...lib/fixtures/v0.3.0) (2025-05-20)