diff --git a/README.md b/README.md
index 5c3f5710..f6a2c9a8 100644
--- a/README.md
+++ b/README.md
@@ -34,7 +34,7 @@ halo2curves = { version = "0.5.0", features = ["derive_serde", "multicore"] }
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
 # bypass the default "multicore" feature
-halo2curves = { version = "0.5.0", default-features = false, features = ["derive_serde", "multicore"] }
+halo2curves = { version = "0.5.0", default-features = false, features = ["derive_serde"]] }
 ```
 ## Benchmarks