diff --git a/Cargo.toml b/Cargo.toml
index 7c6003d..2383054 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,21 +11,16 @@ crate-type = ["cdylib", "rlib"]
 default = ["console_error_panic_hook"]
 
 [dependencies]
-wasm-bindgen = "0.2.63"
+wasm-bindgen = "0.2.84"
 
 # The `console_error_panic_hook` crate provides better debugging of panics by
 # logging them with `console.error`. This is great for development, but requires
 # all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
 # code size when deploying.
-console_error_panic_hook = { version = "0.1.6", optional = true }
-
-# `wee_alloc` is a tiny allocator for wasm that is only ~1K in code size
-# compared to the default allocator's ~10K. It is slower than the default
-# allocator, however.
-wee_alloc = { version = "0.4.5", optional = true }
+console_error_panic_hook = { version = "0.1.7", optional = true }
 
 [dev-dependencies]
-wasm-bindgen-test = "0.3.13"
+wasm-bindgen-test = "0.3.34"
 
 [profile.release]
 # Tell `rustc` to optimize for small code size.
diff --git a/README.md b/README.md
index be29ebd..6b68408 100644
--- a/README.md
+++ b/README.md
@@ -65,8 +65,6 @@ wasm-pack publish
   between WebAssembly and JavaScript.
 * [`console_error_panic_hook`](https://github.com/rustwasm/console_error_panic_hook)
   for logging panic messages to the developer console.
-* [`wee_alloc`](https://github.com/rustwasm/wee_alloc), an allocator optimized
-  for small code size.
 * `LICENSE-APACHE` and `LICENSE-MIT`: most Rust projects are licensed this way, so these are included for you
 
 ## License
@@ -83,4 +81,4 @@ at your option.
 Unless you explicitly state otherwise, any contribution intentionally
 submitted for inclusion in the work by you, as defined in the Apache-2.0
 license, shall be dual licensed as above, without any additional terms or
-conditions.
\ No newline at end of file
+conditions.
diff --git a/src/lib.rs b/src/lib.rs
index 7f20bc7..3437786 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2,14 +2,8 @@ mod utils;
 
 use wasm_bindgen::prelude::*;
 
-// When the `wee_alloc` feature is enabled, use `wee_alloc` as the global
-// allocator.
-#[cfg(feature = "wee_alloc")]
-#[global_allocator]
-static ALLOC: wee_alloc::WeeAlloc = wee_alloc::WeeAlloc::INIT;
-
 #[wasm_bindgen]
-extern {
+extern "C" {
     fn alert(s: &str);
 }