diff --git a/sdk_container/src/third_party/portage-stable/changelog/security/2022-07-28-oniguruma-6.9.8.md b/sdk_container/src/third_party/portage-stable/changelog/security/2022-07-28-oniguruma-6.9.8.md
new file mode 100644
index 0000000000..b9d0fd7b80
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/changelog/security/2022-07-28-oniguruma-6.9.8.md
@@ -0,0 +1 @@
+- oniguruma ([oniguruma-20220430](https://bugs.gentoo.org/841893))
diff --git a/sdk_container/src/third_party/portage-stable/changelog/updates/2022-07-28-oniguruma-6.9.8.md b/sdk_container/src/third_party/portage-stable/changelog/updates/2022-07-28-oniguruma-6.9.8.md
new file mode 100644
index 0000000000..604d1fe0dd
--- /dev/null
+++ b/sdk_container/src/third_party/portage-stable/changelog/updates/2022-07-28-oniguruma-6.9.8.md
@@ -0,0 +1 @@
+- oniguruma ([6.9.8](https://github.com/kkos/oniguruma/releases/tag/v6.9.8))