diff --git a/tools-builder/toolchains/Cargo.lock b/tools-builder/toolchains/Cargo.lock
index 101ca554..f1cc1267 100644
--- a/tools-builder/toolchains/Cargo.lock
+++ b/tools-builder/toolchains/Cargo.lock
@@ -405,7 +405,7 @@ dependencies = [
  "wasmparser 0.240.0",
  "wat",
  "wit-component",
- "wit-parser",
+ "wit-parser 0.242.0",
 ]
 
 [[package]]
@@ -488,6 +488,17 @@ dependencies = [
  "semver",
 ]
 
+[[package]]
+name = "wasmparser"
+version = "0.242.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed3c6e611f4cd748d85c767815823b777dc56afca793fcda27beae4e85028849"
+dependencies = [
+ "bitflags",
+ "indexmap",
+ "semver",
+]
+
 [[package]]
 name = "wast"
 version = "240.0.0"
@@ -606,7 +617,7 @@ dependencies = [
  "wasm-encoder 0.240.0",
  "wasm-metadata",
  "wasmparser 0.240.0",
- "wit-parser",
+ "wit-parser 0.240.0",
 ]
 
 [[package]]
@@ -626,3 +637,21 @@ dependencies = [
  "unicode-xid",
  "wasmparser 0.240.0",
 ]
+
+[[package]]
+name = "wit-parser"
+version = "0.242.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b451c00aeb62cdc67fb52674e3920d84169e212c2dc625231beb59470a0edbd"
+dependencies = [
+ "anyhow",
+ "id-arena",
+ "indexmap",
+ "log",
+ "semver",
+ "serde",
+ "serde_derive",
+ "serde_json",
+ "unicode-xid",
+ "wasmparser 0.242.0",
+]
diff --git a/tools-builder/toolchains/Cargo.toml b/tools-builder/toolchains/Cargo.toml
index 652aa893..16947d68 100644
--- a/tools-builder/toolchains/Cargo.toml
+++ b/tools-builder/toolchains/Cargo.toml
@@ -21,5 +21,5 @@ wasm-encoder = "0.241"
 wat = "1.240"
 
 # Component model support
-wit-parser = "0.240"
+wit-parser = "0.242"
 wit-component = "0.240"