diff --git a/Cargo.toml b/Cargo.toml
index b13a1e3..5da2fe8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -42,13 +42,13 @@ std_rand = ["rand/std_rng", "rand/std"]
 js = ["getrandom/js"]
 
 [target.'cfg(target_arch = "wasm32")'.dependencies]
-getrandom = { version = "*", optional = true }
+getrandom = { version = "0.2.8", optional = true }
 
 [target.'cfg(all(target_arch = "wasm32", not(target_os = "wasi")))'.dev-dependencies]
 wasm-bindgen-test = "0.3"
 
 [dev-dependencies]
-itertools = "*"
+itertools = "0.10.5"
 serde_json = "1.0"
 bincode = "1.3.1"