diff --git a/Cargo.lock b/Cargo.lock
index a1608dbd6..c0a3a648b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -689,9 +689,9 @@ dependencies = [
 
 [[package]]
 name = "heed"
-version = "0.8.1"
+version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c1c9d6f92f402a1452d658038a279d882c77fc5c1f50f29eb491b5fac537f479"
+checksum = "1cbfcd936aa75c7cb1a8485dd2506ea0ae204e2131bf614d8aa4e5f4177455b1"
 dependencies = [
  "byteorder",
  "heed-traits",
diff --git a/Cargo.toml b/Cargo.toml
index 0a15aa653..49af85720 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,7 +14,7 @@ flate2 = "1.0.17"
 fst = "0.4.4"
 fxhash = "0.2.1"
 grenad = { git = "https://github.com/Kerollmops/grenad.git", rev = "ce3517f" }
-heed = { version = "0.8.1", default-features = false, features = ["lmdb"] }
+heed = { version = "0.9.0", default-features = false, features = ["lmdb"] }
 human_format = "1.0.3"
 indexmap = { version = "1.6.0", features = ["serde-1"] }
 jemallocator = "0.3.2"