diff --git a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/amd64/package.mask b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/amd64/package.mask
new file mode 100644
index 0000000000..b47d34eb4e
--- /dev/null
+++ b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/amd64/package.mask
@@ -0,0 +1 @@
+>=sys-firmware/intel-microcode-20180100