diff --git a/Cargo.toml b/Cargo.toml
index 36ff9cb..6a44c7f 100755
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -55,7 +55,7 @@ parking_lot = "0.12.1"
 serde = { version = "1.0.137", optional = true, features = ["derive"] }
 serde_repr = "0.1.12"
 serde-xml-rs = { version = "0.6.0", optional = true }
-wasmer = { version = "3.3.0", optional = true, default-features = false, features = ["sys", "wat", "llvm"] }
+wasmer = { version = "4.0.0", optional = true, default-features = false, features = ["sys", "wat", "llvm"] }
 uuid = "1.2.2"
 paste = { version = "1.0.8" }
 arcstr = { version = "1.1.4", features = ["std"] }