diff --git a/Cargo.lock b/Cargo.lock
index e0a39439b7..9618f46c5e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2215,7 +2215,7 @@ version = "0.7.0"
 dependencies = [
  "anyhow",
  "wasmtime",
- "wast 4.0.0",
+ "wast 5.0.1",
 ]
 
 [[package]]
@@ -2236,6 +2236,15 @@ dependencies = [
  "leb128",
 ]
 
+[[package]]
+name = "wast"
+version = "5.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d1de68310854a9840d39487701a8c1acccb5c9f9f2650d5fce3cdfe6650c372"
+dependencies = [
+ "leb128",
+]
+
 [[package]]
 name = "wat"
 version = "1.0.5"
diff --git a/crates/wast/Cargo.toml b/crates/wast/Cargo.toml
index d20170711b..29270d75f5 100644
--- a/crates/wast/Cargo.toml
+++ b/crates/wast/Cargo.toml
@@ -13,7 +13,7 @@ edition = "2018"
 [dependencies]
 anyhow = "1.0.19"
 wasmtime = { path = "../api" }
-wast = "4.0.0"
+wast = "5.0.1"
 
 [badges]
 maintenance = { status = "actively-developed" }