diff --git a/wasmtime-runtime/Cargo.toml b/wasmtime-runtime/Cargo.toml
index 1133fc7e4c..0aea73842c 100644
--- a/wasmtime-runtime/Cargo.toml
+++ b/wasmtime-runtime/Cargo.toml
@@ -30,7 +30,7 @@ winapi = { version = "0.3.6", features = ["winbase", "memoryapi"] }
 
 [build-dependencies]
 cmake = "0.1.35"
-bindgen = "0.50.0"
+bindgen = "0.51.0"
 regex = "1.0.6"
 
 [features]
diff --git a/wasmtime-wasi-c/Cargo.toml b/wasmtime-wasi-c/Cargo.toml
index 6f3575ffb9..b3619d8d59 100644
--- a/wasmtime-wasi-c/Cargo.toml
+++ b/wasmtime-wasi-c/Cargo.toml
@@ -22,7 +22,7 @@ libc = "0.2.50"
 
 [build-dependencies]
 cmake = "0.1.35"
-bindgen = "0.50.0"
+bindgen = "0.51.0"
 
 [badges]
 maintenance = { status = "experimental" }