diff --git a/polkadot/Cargo.lock b/polkadot/Cargo.lock
index 66adb6cb6c..44ae302688 100644
--- a/polkadot/Cargo.lock
+++ b/polkadot/Cargo.lock
@@ -3570,7 +3570,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "impl-trait-for-tuples 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "jemallocator 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-util-mem-derive 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "smallvec 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3586,6 +3585,7 @@ dependencies = [
  "ethereum-types 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "hashbrown 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "impl-trait-for-tuples 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "jemallocator 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lru 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "parity-util-mem-derive 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "parking_lot 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -3758,7 +3758,7 @@ dependencies = [
  "assert_cmd 0.12.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "futures 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "nix 0.17.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "parity-util-mem 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "parity-util-mem 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "polkadot-cli 0.7.28-pre1",
  "polkadot-service 0.7.28-pre1",
  "vergen 3.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/polkadot/Cargo.toml b/polkadot/Cargo.toml
index f18a6c98ff..17f27d0922 100644
--- a/polkadot/Cargo.toml
+++ b/polkadot/Cargo.toml
@@ -13,7 +13,7 @@ edition = "2018"
 cli = { package = "polkadot-cli", path = "cli" }
 futures = "0.3.4"
 service = { package = "polkadot-service", path = "service" }
-parity-util-mem = { version = "0.5.1", default-features = false, features = ["jemalloc-global"] }
+parity-util-mem = { version = "*", default-features = false, features = ["jemalloc-global"] }
 
 [build-dependencies]
 vergen = "3.0.4"