diff --git a/lmdb-sys/lmdb b/lmdb-sys/lmdb
index fb5a768..ad8488c 160000
--- a/lmdb-sys/lmdb
+++ b/lmdb-sys/lmdb
@@ -1 +1 @@
-Subproject commit fb5a768a77ca5330e15a3a34ceb694bc11cb216a
+Subproject commit ad8488cfac644d7a289e428ab3c403c859d844cb