diff --git a/Cargo.lock b/Cargo.lock
index ecc83867..648b4f3d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -101,7 +101,7 @@ dependencies = [
 
 [[package]]
 name = "hnswlib"
-version = "0.8.0"
+version = "0.8.1"
 dependencies = [
  "cc",
  "rand",
diff --git a/build.rs b/build.rs
index 04bbe7bf..acc7fe42 100644
--- a/build.rs
+++ b/build.rs
@@ -11,6 +11,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         .flag("-fPIC")
         .flag("-ftree-vectorize")
         .flag("-w")
+        .flag("-march=native")
         .compile("bindings");
 
     Ok(())