diff --git a/crates/cli-support/Cargo.toml b/crates/cli-support/Cargo.toml
index 98a626d3..4d09a434 100644
--- a/crates/cli-support/Cargo.toml
+++ b/crates/cli-support/Cargo.toml
@@ -13,7 +13,7 @@ Shared support for the wasm-bindgen-cli package, an internal dependency
 [dependencies]
 base64 = "0.9"
 failure = "0.1"
-parity-wasm = "0.30"
+parity-wasm = "0.31"
 serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"
diff --git a/crates/cli-support/src/wasm2es6js.rs b/crates/cli-support/src/wasm2es6js.rs
index 727b0d83..d58b502c 100644
--- a/crates/cli-support/src/wasm2es6js.rs
+++ b/crates/cli-support/src/wasm2es6js.rs
@@ -320,11 +320,11 @@ impl Output {
                 if offset.len() != 2 {
                     bail!("don't recognize data offset {:?}", offset)
                 }
-                if offset[1] != Opcode::End {
+                if offset[1] != Instruction::End {
                     bail!("don't recognize data offset {:?}", offset)
                 }
                 let offset = match offset[0] {
-                    Opcode::I32Const(x) => x,
+                    Instruction::I32Const(x) => x,
                     _ => bail!("don't recognize data offset {:?}", offset),
                 };