diff --git a/Cargo.toml b/Cargo.toml
index 6f71567511..482d5e9dca 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -40,7 +40,7 @@ faerie = "0.10.1"
 target-lexicon = { version = "0.4.0", default-features = false }
 pretty_env_logger = "0.3.0"
 file-per-thread-logger = "0.1.1"
-wabt = "0.8"
+wabt = "0.7"
 libc = "0.2.50"
 errno = "0.2.4"
 rayon = "1.1"
diff --git a/wasmtime-wast/Cargo.toml b/wasmtime-wast/Cargo.toml
index 51e5275ce7..638a993363 100644
--- a/wasmtime-wast/Cargo.toml
+++ b/wasmtime-wast/Cargo.toml
@@ -19,7 +19,7 @@ cranelift-entity = "0.33.0"
 wasmtime-jit = { path = "../wasmtime-jit" }
 wasmtime-runtime = { path = "../wasmtime-runtime" }
 wasmtime-environ = { path = "../wasmtime-environ" }
-wabt = "0.8"
+wabt = "0.7"
 target-lexicon = "0.4.0"
 failure = { version = "0.1.3", default-features = false }
 failure_derive = { version = "0.1.3", default-features = false }