diff --git a/Cargo.lock b/Cargo.lock
index 0fd98ce..447e750 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -202,7 +202,7 @@ name = "typed-wasm-codegen"
 version = "0.1.0"
 dependencies = [
  "typed-wasm-verify",
- "wasm-encoder 0.255.0",
+ "wasm-encoder 0.256.0",
  "wasmi",
  "wasmparser 0.256.0",
  "wasmprinter",
@@ -223,8 +223,8 @@ name = "typed-wasm-verify"
 version = "0.1.0"
 dependencies = [
  "thiserror",
- "wasm-encoder 0.255.0",
- "wasmparser 0.256.0",
+ "wasm-encoder 0.256.0",
+ "wasmparser 0.255.0",
 ]
 
 [[package]]
@@ -251,12 +251,12 @@ dependencies = [
 
 [[package]]
 name = "wasm-encoder"
-version = "0.255.0"
+version = "0.256.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9b524283fb5df62eec102ed0574838961bdd7ba5ac9c50d38e2756c51c971a42"
+checksum = "ec1492381bfd5ea51c2a99a919b676662559925cb8d7490547ec2e14c1ad3eb1"
 dependencies = [
  "leb128fmt",
- "wasmparser 0.255.0",
+ "wasmparser 0.256.0",
 ]
 
 [[package]]
diff --git a/crates/typed-wasm-codegen/Cargo.toml b/crates/typed-wasm-codegen/Cargo.toml
index cfb5323..ea9c2ce 100644
--- a/crates/typed-wasm-codegen/Cargo.toml
+++ b/crates/typed-wasm-codegen/Cargo.toml
@@ -19,7 +19,7 @@ path = "src/bin/tw.rs"
 # Pinned to match typed-wasm-verify's wasmparser line exactly; the wasm
 # tooling 0.x series ships API breaks on minor bumps, so keep producer
 # and verifier on the same locked version.
-wasm-encoder = "=0.255.0"
+wasm-encoder = "=0.256.0"
 # WAT (text wasm) rendering for `tw build --emit wat` (Phase 1 deliverable 4, #125).
 wasmprinter = "=0.256.0"
 # The producer reuses the verifier's own carrier encoders so the emitted
diff --git a/crates/typed-wasm-verify/Cargo.toml b/crates/typed-wasm-verify/Cargo.toml
index 8962433..f460d3c 100644
--- a/crates/typed-wasm-verify/Cargo.toml
+++ b/crates/typed-wasm-verify/Cargo.toml
@@ -50,4 +50,4 @@ wasmparser = "=0.256.0"
 thiserror = "2"
 
 [dev-dependencies]
-wasm-encoder = "=0.255.0"
+wasm-encoder = "=0.256.0"