diff --git a/Cargo.lock b/Cargo.lock
index f47cd96..8915f9d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -56,9 +56,9 @@ dependencies = [
 
 [[package]]
 name = "nix"
-version = "0.26.1"
+version = "0.26.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46a58d1d356c6597d08cde02c2f09d785b09e28711837b1ed667dc652c08a694"
+checksum = "bfdda3d196821d6af13126e40375cdf7da646a96114af134d5f417a9a1dc8e1a"
 dependencies = [
  "bitflags",
  "cfg-if",
diff --git a/Cargo.toml b/Cargo.toml
index 6b07b33..ea3192a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,6 +11,8 @@ members = [
 ]
 
 [profile.release]
+codegen-units = 1
 lto = true
-strip = true
+opt-level = "z"
 panic = "abort"
+strip = true