diff --git a/host/witness-wasi-harness/Cargo.toml b/host/witness-wasi-harness/Cargo.toml
index 60ecf8b..8c9b6a3 100644
--- a/host/witness-wasi-harness/Cargo.toml
+++ b/host/witness-wasi-harness/Cargo.toml
@@ -13,7 +13,7 @@ path = "src/main.rs"
 
 [dependencies]
 wasmtime = "27"
-wasmtime-wasi = "27"
+wasmtime-wasi = "45"
 anyhow = "1"
 serde_json = "1"
 serde = { version = "1", features = ["derive"] }