diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..807d7ae
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "libmdbx"]
+	path = libmdbx
+	url = https://github.com/wtdcode/libmdbx-mirror
diff --git a/libmdbx b/libmdbx
new file mode 160000
index 0000000..b16c257
--- /dev/null
+++ b/libmdbx
@@ -0,0 +1 @@
+Subproject commit b16c2570f069134b96e6cc3eebcb3537cbc55e67