diff --git a/Cargo.lock b/Cargo.lock
index 11e6cf176..b874d507b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -900,18 +900,18 @@ dependencies = [
  "target-lexicon 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "wabt 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "wasmparser 0.20.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "wasmparser 0.23.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "wasmparser"
-version = "0.20.0"
+version = "0.22.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "wasmparser"
-version = "0.22.1"
+version = "0.23.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -1040,8 +1040,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
 "checksum wabt 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8ff1f0f87e467255240c1faf5cf13a04410723407840d7733e75967224e191a5"
 "checksum wabt-sys 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "0cc8982bfe0a923f152e96d991e50a6f97fe73ca4af6d9d84d76634f03051fa2"
-"checksum wasmparser 0.20.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2a75e0c3fe9a4d4fd91901348a5be05ba4791e29dda89e8596bfe87900ba7edc"
 "checksum wasmparser 0.22.1 (registry+https://github.com/rust-lang/crates.io-index)" = "f46e666ecb4a406483a59a49f9d0c17f327e70da53a128eccddae2eadb95865c"
+"checksum wasmparser 0.23.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b5e01c420bc7d36e778bd242e1167b079562ba8b34087122cc9057187026d060"
 "checksum winapi 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "92c1eb33641e276cfa214a0522acad57be5c56b10cb348b3c5117db75f3ac4b0"
 "checksum winapi-i686-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
 "checksum winapi-x86_64-pc-windows-gnu 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
diff --git a/Cargo.toml b/Cargo.toml
index 9ec64eb20..5c09b9f2a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,7 +36,7 @@ error-chain = "0.12.0"
 errno = "0.2.4"
 structopt = "0.2.11"
 wabt = "0.7.2"
-wasmparser = "0.20.0"
+wasmparser = "0.23.0"
 winapi = "0.3.6"
 region = "0.3.0"
 # spin = "0.4.10"