diff --git a/tools/checksum_updater/Cargo.lock b/tools/checksum_updater/Cargo.lock
index 5bab35fa..2406a421 100644
--- a/tools/checksum_updater/Cargo.lock
+++ b/tools/checksum_updater/Cargo.lock
@@ -1916,7 +1916,7 @@ version = "0.14.2+wasi-0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9683f9a5a998d873c0d21fcbe3c083009670149a8fab228644b8bd36b2c48cb3"
 dependencies = [
- "wit-bindgen-rt 0.39.0",
+ "wit-bindgen-rt",
 ]
 
 [[package]]
@@ -1992,9 +1992,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-encoder"
-version = "0.236.1"
+version = "0.238.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "724fccfd4f3c24b7e589d333fc0429c68042897a7e8a5f8694f31792471841e7"
+checksum = "d50d48c31c615f77679b61c607b8151378a5d03159616bf3d17e8e2005afdaf5"
 dependencies = [
  "leb128fmt",
  "wasmparser",
@@ -2002,9 +2002,9 @@ dependencies = [
 
 [[package]]
 name = "wasm-metadata"
-version = "0.236.1"
+version = "0.238.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c909f94a49a8de3365f3c0344f064818f1e369ff1740c5b04f455f85d454768e"
+checksum = "00094573b000c92134f2ef0f8afa4f6f892de37e78442988c946243a8c44364e"
 dependencies = [
  "anyhow",
  "indexmap",
@@ -2014,9 +2014,9 @@ dependencies = [
 
 [[package]]
 name = "wasmparser"
-version = "0.236.1"
+version = "0.238.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a9b1e81f3eb254cf7404a82cee6926a4a3ccc5aad80cc3d43608a070c67aa1d7"
+checksum = "3fa99c8328024423875ae4a55345cfde8f0371327fb2d0f33b0f52a06fc44408"
 dependencies = [
  "bitflags 2.9.3",
  "hashbrown",
@@ -2349,19 +2349,21 @@ dependencies = [
 
 [[package]]
 name = "wit-bindgen"
-version = "0.44.0"
+version = "0.45.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04bd9ed271234163b18c92783b0d406f08ca32c232e972f207a68c7b324c44bf"
+checksum = "052283831dbae3d879dc7f51f3d92703a316ca49f91540417d38591826127814"
 dependencies = [
- "wit-bindgen-rt 0.44.0",
+ "bitflags 2.9.3",
+ "futures",
+ "once_cell",
  "wit-bindgen-rust-macro",
 ]
 
 [[package]]
 name = "wit-bindgen-core"
-version = "0.44.0"
+version = "0.45.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b4103c7a3e178b75cd8b0b574fa199ed015e8399c9859b003865cc28834b474b"
+checksum = "1df0102d506f94732b6b517015e7e951293ed51e98f1615f15056e5e1a7a4d67"
 dependencies = [
  "anyhow",
  "heck",
@@ -2377,22 +2379,11 @@ dependencies = [
  "bitflags 2.9.3",
 ]
 
-[[package]]
-name = "wit-bindgen-rt"
-version = "0.44.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "653c85dd7aee6fe6f4bded0d242406deadae9819029ce6f7d258c920c384358a"
-dependencies = [
- "bitflags 2.9.3",
- "futures",
- "once_cell",
-]
-
 [[package]]
 name = "wit-bindgen-rust"
-version = "0.44.0"
+version = "0.45.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95d164b3b6fbd2b0dd8b639b1012110c0bc256519a0a6def410d4020fa8ae106"
+checksum = "8e128967ed7895a41c5541bd8cd2875472caad6434e6699c1b269302a0d60b39"
 dependencies = [
  "anyhow",
  "heck",
@@ -2406,9 +2397,9 @@ dependencies = [
 
 [[package]]
 name = "wit-bindgen-rust-macro"
-version = "0.44.0"
+version = "0.45.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2c9100a5e1ac85e526dcd4ef49c3ff7689e026fa5e56e2a2047fd377fc682e02"
+checksum = "ea08d8273179bf25a7aa87fc498380f7a7f56a2df93cd1135d0ca36af1eae962"
 dependencies = [
  "anyhow",
  "prettyplease",
@@ -2421,9 +2412,9 @@ dependencies = [
 
 [[package]]
 name = "wit-component"
-version = "0.236.1"
+version = "0.238.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3622959ed7ed6341c38e5aa35af243632534b0a36226852faa802939ce11e00f"
+checksum = "7d31c985f541330d1a809547043ad19dd58739a2f83c7f116aeabcab86aed597"
 dependencies = [
  "anyhow",
  "bitflags 2.9.3",
@@ -2440,9 +2431,9 @@ dependencies = [
 
 [[package]]
 name = "wit-parser"
-version = "0.236.1"
+version = "0.238.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "16e4833a20cd6e85d6abfea0e63a399472d6f88c6262957c17f546879a80ba15"
+checksum = "1eea12c964ed423ed14745e51aac2f1e28e5572ca012b0503bdcf65ffee3b44c"
 dependencies = [
  "anyhow",
  "id-arena",
diff --git a/tools/checksum_updater/Cargo.toml b/tools/checksum_updater/Cargo.toml
index 22c59591..6928a155 100644
--- a/tools/checksum_updater/Cargo.toml
+++ b/tools/checksum_updater/Cargo.toml
@@ -27,7 +27,7 @@ tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 tempfile = "3.0"
 async-trait = "0.1"
-wit-bindgen = "0.44.0"  # WIT binding generation for macro usage
+wit-bindgen = "0.45.0"  # WIT binding generation for macro usage
 uuid = { version = "1.0", default-features = false }  # UUID generation for user service (deterministic, no getrandom dependency)
 
 [dev-dependencies]