diff --git a/Cargo.lock b/Cargo.lock
index c570edd..36023c2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,7 +1,5 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
-
 [[package]]
 name = "arrayvec"
 version = "0.5.2"
diff --git a/Cargo.toml b/Cargo.toml
index 12aa89d..a47424e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -69,10 +69,6 @@ rand = "0.8.3"
 [profile.release]
 lto = "thin"
 
-# perform some simple optimisations when testing
-[profile.test]
-opt-level = 1
-
 # optimise dependencies, even when producing debug and test builds
 [profile.dev.package."*"]
 opt-level = 3