diff --git a/Cargo.toml b/Cargo.toml
index 99b7d269b..7ea750c8e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -53,6 +53,7 @@ bitcoin_hashes = "0.10"
 
 [target.wasm32-unknown-unknown.dev-dependencies]
 wasm-bindgen-test = "0.3"
+getrandom = { version = "0.2", features = ["js"] }
 
 
 [[example]]