diff --git a/sdk_container/src/third_party/coreos-overlay/changelog/updates/2022-01-31-sbsigntools.md b/sdk_container/src/third_party/coreos-overlay/changelog/updates/2022-01-31-sbsigntools.md
new file mode 100644
index 0000000000..cb20665086
--- /dev/null
+++ b/sdk_container/src/third_party/coreos-overlay/changelog/updates/2022-01-31-sbsigntools.md
@@ -0,0 +1 @@
+- sbsigntools ([0.9.4](https://git.kernel.org/pub/scm/linux/kernel/git/jejb/sbsigntools.git/tag/?h=v0.9.4))