diff --git a/Cargo.toml b/Cargo.toml
index 929a7af8..811561f0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,12 +8,12 @@ anyhow = "1.0"
 lazy_static = "1"
 serde = "1.0"
 serde_json = "1.0"
-wasmer = "2.1.1"
+wasmer = "2.2.0-rc1"
 as-ffi-bindings = "0.2.1"
-wasmer-compiler-singlepass = "2.1.1"
-wasmer-engine-universal = "2.1.1"
-wasmer-middlewares = "2.1.1"
+wasmer-compiler-singlepass = "2.2.0-rc1"
+wasmer-engine-universal = "2.2.0-rc1"
+wasmer-middlewares = "2.2.0-rc1"
 cornetto = "0.1.0"
 base64 = "0.13.0"
 serial_test = "0.5.1"
-loupe = "0.1.3"
\ No newline at end of file
+loupe = "0.1.3"