diff --git a/.gitmodules b/.gitmodules
index fe250cde..dcb789bc 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -9,8 +9,8 @@
 	url = https://github.com/weidai11/cryptopp.git
 [submodule "lmdb"]
 	path = lmdb
-	url = https://github.com/arugulaBowl/lmdb.git
-	branch = mdb.RE/0.9
+	url = https://github.com/nanocurrency/lmdb.git
+	branch = lmdb_0_9_21
 [submodule "phc-winner-argon2"]
 	path = phc-winner-argon2
 	url = https://github.com/clemahieu/phc-winner-argon2.git