diff --git a/third_party/zarchive b/third_party/zarchive
new file mode 160000
index 000000000..d2c717730
--- /dev/null
+++ b/third_party/zarchive
@@ -0,0 +1 @@
+Subproject commit d2c717730092c7bf8cbb033b12fd4001b7c4d932
diff --git a/third_party/zstd b/third_party/zstd
new file mode 160000
index 000000000..7806d8033
--- /dev/null
+++ b/third_party/zstd
@@ -0,0 +1 @@
+Subproject commit 7806d803383b75b00868a5367154a18caf535a92