diff --git a/lmdb-sys/Cargo.toml b/lmdb-sys/Cargo.toml
index 2210899..6e7aa93 100644
--- a/lmdb-sys/Cargo.toml
+++ b/lmdb-sys/Cargo.toml
@@ -2,7 +2,7 @@
 
 name = "lmdb-rkv-sys"
 # NB: When modifying, also modify html_root_url in lib.rs
-version = "0.8.3"
+version = "0.8.4"
 authors = ["Dan Burkert <dan@danburkert.com>"]
 license = "Apache-2.0"
 
diff --git a/lmdb-sys/lmdb b/lmdb-sys/lmdb
index 6477ba9..ef6dc46 160000
--- a/lmdb-sys/lmdb
+++ b/lmdb-sys/lmdb
@@ -1 +1 @@
-Subproject commit 6477ba95ca484050a4203051305a31c52aa64896
+Subproject commit ef6dc46199b6e7db4b648f9823d16ad077767507
diff --git a/lmdb-sys/src/lib.rs b/lmdb-sys/src/lib.rs
index bc9290e..f96f203 100644
--- a/lmdb-sys/src/lib.rs
+++ b/lmdb-sys/src/lib.rs
@@ -1,6 +1,6 @@
 #![allow(non_camel_case_types)]
 #![deny(warnings)]
-#![doc(html_root_url = "https://docs.rs/lmdb-rkv-sys/0.8.3")]
+#![doc(html_root_url = "https://docs.rs/lmdb-rkv-sys/0.8.4")]
 
 extern crate libc;