diff --git a/tools/checksum_updater/Cargo.lock b/tools/checksum_updater/Cargo.lock
index dba0e3c0..7c20ceae 100644
--- a/tools/checksum_updater/Cargo.lock
+++ b/tools/checksum_updater/Cargo.lock
@@ -1974,9 +1974,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-encoder"
-version = "0.239.0"
+version = "0.241.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5be00faa2b4950c76fe618c409d2c3ea5a3c9422013e079482d78544bb2d184c"
+checksum = "e01164c9dda68301e34fdae536c23ed6fe90ce6d97213ccc171eebbd3d02d6b8"
 dependencies = [
  "leb128fmt",
  "wasmparser",
@@ -1984,9 +1984,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-metadata"
-version = "0.239.0"
+version = "0.241.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20b3ec880a9ac69ccd92fbdbcf46ee833071cf09f82bb005b2327c7ae6025ae2"
+checksum = "876fe286f2fa416386deedebe8407e6f19e0b5aeaef3d03161e77a15fa80f167"
 dependencies = [
  "anyhow",
  "indexmap",
@@ -1996,9 +1996,9 @@ dependencies = [
 
 [[package]]
 name = "wasmparser"
-version = "0.239.0"
+version = "0.241.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c9d90bb93e764f6beabf1d02028c70a2156a6583e63ac4218dd07ef733368b0"
+checksum = "46d90019b1afd4b808c263e428de644f3003691f243387d30d673211ee0cb8e8"
 dependencies = [
  "bitflags",
  "hashbrown",
@@ -2259,21 +2259,19 @@ checksum = "271414315aff87387382ec3d271b52d7ae78726f5d44ac98b4f4030c91880486"
 
 [[package]]
 name = "wit-bindgen"
-version = "0.46.0"
+version = "0.48.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f17a85883d4e6d00e8a97c586de764dabcc06133f7f1d55dce5cdc070ad7fe59"
+checksum = "7f8c2adb5f74ac9395bc3121c99a1254bf9310482c27b13f97167aedb5887138"
 dependencies = [
  "bitflags",
- "futures",
- "once_cell",
  "wit-bindgen-rust-macro",
 ]
 
 [[package]]
 name = "wit-bindgen-core"
-version = "0.46.0"
+version = "0.48.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cabd629f94da277abc739c71353397046401518efb2c707669f805205f0b9890"
+checksum = "9b881a098cae03686d7a0587f8f306f8a58102ad8da8b5599100fbe0e7f5800b"
 dependencies = [
  "anyhow",
  "heck",
@@ -2291,9 +2289,9 @@ dependencies = [
 
 [[package]]
 name = "wit-bindgen-rust"
-version = "0.46.0"
+version = "0.48.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a4232e841089fa5f3c4fc732a92e1c74e1a3958db3b12f1de5934da2027f1f4"
+checksum = "69667efa439a453e1d50dac939c6cab6d2c3ac724a9d232b6631dad2472a5b70"
 dependencies = [
  "anyhow",
  "heck",
@@ -2307,9 +2305,9 @@ dependencies = [
 
 [[package]]
 name = "wit-bindgen-rust-macro"
-version = "0.46.0"
+version = "0.48.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1e0d4698c2913d8d9c2b220d116409c3f51a7aa8d7765151b886918367179ee9"
+checksum = "eae2e22cceb5d105d52326c07e3e67603a861cc7add70fc467f7cc7ec5265017"
 dependencies = [
  "anyhow",
  "prettyplease",
@@ -2322,9 +2320,9 @@ dependencies = [
 
 [[package]]
 name = "wit-component"
-version = "0.239.0"
+version = "0.241.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88a866b19dba2c94d706ec58c92a4c62ab63e482b4c935d2a085ac94caecb136"
+checksum = "1fd0c57df25e7ee612d946d3b7646c1ddb2310f8280aa2c17e543b66e0812241"
 dependencies = [
  "anyhow",
  "bitflags",
@@ -2341,9 +2339,9 @@ dependencies = [
 
 [[package]]
 name = "wit-parser"
-version = "0.239.0"
+version = "0.241.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55c92c939d667b7bf0c6bf2d1f67196529758f99a2a45a3355cc56964fd5315d"
+checksum = "09ef1c6ad67f35c831abd4039c02894de97034100899614d1c44e2268ad01c91"
 dependencies = [
  "anyhow",
  "id-arena",
diff --git a/tools/checksum_updater/Cargo.toml b/tools/checksum_updater/Cargo.toml
index 2312721b..e7d1ea94 100644
--- a/tools/checksum_updater/Cargo.toml
+++ b/tools/checksum_updater/Cargo.toml
@@ -31,7 +31,7 @@ tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 tempfile = "3.23"
 async-trait = "0.1"
-wit-bindgen = "0.46.0"  # WIT binding generation for macro usage (MUST match CLI version in wasm_toolchain.bzl)
+wit-bindgen = "0.48.1"  # WIT binding generation for macro usage (MUST match CLI version in wasm_toolchain.bzl)
 uuid = { version = "1.18", default-features = false }  # UUID generation for user service (deterministic, no getrandom dependency)
 bitflags = "2.6"  # Bitflags for WASI filesystem interfaces in generated bindings