diff --git a/lmdb-sys/lmdb b/lmdb-sys/lmdb
index 38a873b..b7df2ca 160000
--- a/lmdb-sys/lmdb
+++ b/lmdb-sys/lmdb
@@ -1 +1 @@
-Subproject commit 38a873b42b4996438c3246015c5fe9469cafbe2a
+Subproject commit b7df2cac50fb41e8bd16aab4cc5fd167be9e032a