diff --git a/tools-builder/toolchains/Cargo.lock b/tools-builder/toolchains/Cargo.lock
index 101ca554..96c52097 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 0.240.0",
 ]
 
 [[package]]
@@ -452,16 +452,26 @@ dependencies = [
  "wasmparser 0.241.2",
 ]
 
+[[package]]
+name = "wasm-encoder"
+version = "0.242.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "67f90e55bc9c6ee6954a757cc6eb3424d96b442e5252ed10fea627e518878d36"
+dependencies = [
+ "leb128fmt",
+ "wasmparser 0.242.0",
+]
+
 [[package]]
 name = "wasm-metadata"
-version = "0.240.0"
+version = "0.242.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ee093e1e1ccffa005b9b778f7a10ccfd58e25a20eccad294a1a93168d076befb"
+checksum = "53cc3deb1bc19b28fa43bd5773ad712ab0ddabea785b78166d6791b14e955fe1"
 dependencies = [
  "anyhow",
  "indexmap",
- "wasm-encoder 0.240.0",
- "wasmparser 0.240.0",
+ "wasm-encoder 0.242.0",
+ "wasmparser 0.242.0",
 ]
 
 [[package]]
@@ -488,6 +498,18 @@ dependencies = [
  "semver",
 ]
 
+[[package]]
+name = "wasmparser"
+version = "0.242.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ed3c6e611f4cd748d85c767815823b777dc56afca793fcda27beae4e85028849"
+dependencies = [
+ "bitflags",
+ "hashbrown 0.15.5",
+ "indexmap",
+ "semver",
+]
+
 [[package]]
 name = "wast"
 version = "240.0.0"
@@ -592,9 +614,9 @@ checksum = "d6bbff5f0aada427a1e5a6da5f1f98158182f26556f345ac9e04d36d0ebed650"
 
 [[package]]
 name = "wit-component"
-version = "0.240.0"
+version = "0.242.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7dc5474b078addc5fe8a72736de8da3acfb3ff324c2491133f8b59594afa1a20"
+checksum = "d4e5b1fcd7a9ff7ea5ef1850673ed124a810901481b728ca9632f62ee274f856"
 dependencies = [
  "anyhow",
  "bitflags",
@@ -603,10 +625,10 @@ dependencies = [
  "serde",
  "serde_derive",
  "serde_json",
- "wasm-encoder 0.240.0",
+ "wasm-encoder 0.242.0",
  "wasm-metadata",
- "wasmparser 0.240.0",
- "wit-parser",
+ "wasmparser 0.242.0",
+ "wit-parser 0.242.0",
 ]
 
 [[package]]
@@ -626,3 +648,21 @@ 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..23ef96fa 100644
--- a/tools-builder/toolchains/Cargo.toml
+++ b/tools-builder/toolchains/Cargo.toml
@@ -22,4 +22,4 @@ wat = "1.240"
 
 # Component model support
 wit-parser = "0.240"
-wit-component = "0.240"
+wit-component = "0.242"