diff --git a/Cargo.lock b/Cargo.lock
index 51bcec7d..aa9ff7e8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1230,7 +1230,7 @@ dependencies = [
  "tempfile",
  "toml",
  "walkdir",
- "wast",
+ "wast 237.0.0",
  "wat",
 ]
 
@@ -3310,7 +3310,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "efe92d1321afa53ffc88a57c497bb7330c3cf84c98ffdba4a4caf6a0684fad3c"
 dependencies = [
  "leb128fmt",
- "wasmparser",
+ "wasmparser 0.237.0",
+]
+
+[[package]]
+name = "wasm-encoder"
+version = "0.244.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "990065f2fe63003fe337b932cfb5e3b80e0b4d0f5ff650e6985b1048f62c8319"
+dependencies = [
+ "leb128fmt",
+ "wasmparser 0.244.0",
 ]
 
 [[package]]
@@ -3324,6 +3334,17 @@ dependencies = [
  "semver",
 ]
 
+[[package]]
+name = "wasmparser"
+version = "0.244.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "47b807c72e1bac69382b3a6fb3dbe8ea4c0ed87ff5629b8685ae6b9a611028fe"
+dependencies = [
+ "bitflags 2.9.1",
+ "indexmap",
+ "semver",
+]
+
 [[package]]
 name = "wast"
 version = "237.0.0"
@@ -3334,16 +3355,29 @@ dependencies = [
  "leb128fmt",
  "memchr",
  "unicode-width",
- "wasm-encoder",
+ "wasm-encoder 0.237.0",
+]
+
+[[package]]
+name = "wast"
+version = "244.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2e7b9f9e23311275920e3d6b56d64137c160cf8af4f84a7283b36cfecbf4acb"
+dependencies = [
+ "bumpalo",
+ "leb128fmt",
+ "memchr",
+ "unicode-width",
+ "wasm-encoder 0.244.0",
 ]
 
 [[package]]
 name = "wat"
-version = "1.237.0"
+version = "1.244.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27975186f549e4b8d6878b627be732863883c72f7bf4dcf8f96e5f8242f73da9"
+checksum = "bbf35b87ed352f9ab6cd0732abde5a67dd6153dfd02c493e61459218b19456fa"
 dependencies = [
- "wast",
+ "wast 244.0.0",
 ]
 
 [[package]]
diff --git a/kiln-build-core/Cargo.toml b/kiln-build-core/Cargo.toml
index 95103d62..939957ae 100644
--- a/kiln-build-core/Cargo.toml
+++ b/kiln-build-core/Cargo.toml
@@ -33,7 +33,7 @@ md5 = "0.7"
 
 # WAST test suite support
 wast = "237.0"
-wat = "1.232.0"
+wat = "1.244.0"
 
 # Internal Kiln crates
 kiln-error = { workspace = true }
diff --git a/kiln-decoder/Cargo.toml b/kiln-decoder/Cargo.toml
index cceeb4c8..c46ee0da 100644
--- a/kiln-decoder/Cargo.toml
+++ b/kiln-decoder/Cargo.toml
@@ -23,7 +23,7 @@ kiln-foundation = { workspace = true, default-features = false }
 # Core dependencies
 log = { version = "0.4", optional = true }
 # WAT parsing (for testing)
-wat = { version = "1.232.0", optional = true }
+wat = { version = "1.244.0", optional = true }
 # TOML configuration (for tooling)
 toml = { version = "0.9", optional = true }
 serde = { version = "1.0", features = ["derive"], optional = true }
@@ -33,7 +33,7 @@ criterion = "0.6"
 tempfile = "3.27"
 proptest = "1.4"
 hex = "0.4"
-wat = "1.232.0"
+wat = "1.244.0"
 
 [features]
 default = []