diff --git a/sdk_container/src/third_party/coreos-overlay/app-misc/ca-certificates/Manifest b/sdk_container/src/third_party/coreos-overlay/app-misc/ca-certificates/Manifest
index ffa8e93a2d..df6273314e 100644
--- a/sdk_container/src/third_party/coreos-overlay/app-misc/ca-certificates/Manifest
+++ b/sdk_container/src/third_party/coreos-overlay/app-misc/ca-certificates/Manifest
@@ -1 +1 @@
-DIST nss-3.73.tar.gz 83928905 BLAKE2B 64c95a04c366dc3d57c42ddb105b3afe5b4b579b3fdb554ffa684f74f5c203b136213a1a67a554756be605722ac03c15cee766afba6edf2c7c0b2162a8181ec5 SHA512 84b6e4ce8838f77674a5587cd227fa103c80f1b36c8bfb9b60a175157f131e59153c79ee77b29feffa57f49b217a90a8a091ee368eb0bc03312894e386a4c01b
+DIST nss-3.73.1.tar.gz 83931597 BLAKE2B 590e3c9c5262f4ca0d9137905ce396ddc81f722fabbb54f235eb1bab344d9b7913b0be8d4ddf99fef34d45ed0102e8b7b571764eefe055eefe6bb487c22bafbe SHA512 4cca26cb430f1c167ce7c3a2654c1315938c73bbd425c89d4e636a966fd052724499f34affc5764ec680eeaa080892caab28ef00fe21992421c739f7623cf071
diff --git a/sdk_container/src/third_party/coreos-overlay/app-misc/ca-certificates/ca-certificates-3.73-r1.ebuild b/sdk_container/src/third_party/coreos-overlay/app-misc/ca-certificates/ca-certificates-3.73.1.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/app-misc/ca-certificates/ca-certificates-3.73-r1.ebuild
rename to sdk_container/src/third_party/coreos-overlay/app-misc/ca-certificates/ca-certificates-3.73.1.ebuild
diff --git a/sdk_container/src/third_party/coreos-overlay/changelog/updates/2021-12-20-ca-certificates-update.md b/sdk_container/src/third_party/coreos-overlay/changelog/updates/2021-12-20-ca-certificates-update.md
new file mode 100644
index 0000000000..ada326ed28
--- /dev/null
+++ b/sdk_container/src/third_party/coreos-overlay/changelog/updates/2021-12-20-ca-certificates-update.md
@@ -0,0 +1 @@
+- ca-certificates ([3.73.1](https://firefox-source-docs.mozilla.org/security/nss/releases/nss_3_73_1.html))