diff --git a/Cargo.lock b/Cargo.lock
index dd80ed892c..9d234250f7 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1457,11 +1457,10 @@ checksum = "f36b5f248235f45773d4944f555f83ea61fe07b18b561ccf99d7483d7381e54d"
 
 [[package]]
 name = "hashbrown"
-version = "0.6.3"
+version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e6073d0ca812575946eb5f35ff68dbe519907b25c42530389ff946dc84c6ead"
+checksum = "d7afe4a420e3fe79967a00898cc1f4db7c8a49a9333a29f8a4bd76a253d5cd04"
 dependencies = [
- "autocfg 0.1.7",
  "serde",
 ]
 
diff --git a/common/Cargo.toml b/common/Cargo.toml
index 3e69d543be..ac222a86e5 100644
--- a/common/Cargo.toml
+++ b/common/Cargo.toml
@@ -39,7 +39,7 @@ loggers = [
 cfg-if = "0.1"
 mc-crypto-digestible = { path = "../crypto/digestible" }
 failure = { version = "0.1.8", default-features = false, features = ["derive"] }
-hashbrown = { version = "0.6", default-features = false, features = ["serde", "nightly"] }
+hashbrown = { version = "0.9", default-features = false, features = ["serde", "nightly"] }
 mc-crypto-keys = { path = "../crypto/keys", default-features = false }
 mc-crypto-rand = { path = "../crypto/rand" }
 # Note: mc-util-serial is an unused dependency, but anywhere we forward serde/std, we need to get rmp-serde/std also, or the build breaks.