diff --git a/lmdb-master-sys/lmdb b/lmdb-master-sys/lmdb
index b21e1b9f..f20e41de 160000
--- a/lmdb-master-sys/lmdb
+++ b/lmdb-master-sys/lmdb
@@ -1 +1 @@
-Subproject commit b21e1b9fea935d2f3b94e6d315db1c47a5753199
+Subproject commit f20e41de09d97e4461946b7e26ec831d0c24fac7
diff --git a/lmdb-master3-sys/lmdb b/lmdb-master3-sys/lmdb
index 9ec98ca0..b6c4293f 160000
--- a/lmdb-master3-sys/lmdb
+++ b/lmdb-master3-sys/lmdb
@@ -1 +1 @@
-Subproject commit 9ec98ca00e8689de4fcd5400f2d5722cf14c56e8
+Subproject commit b6c4293f6fd6e3a3e4d5b6571fe3da7e80699597