diff --git a/speexdsp-sys/Cargo.toml b/speexdsp-sys/Cargo.toml
index 160059e..bf640a0 100644
--- a/speexdsp-sys/Cargo.toml
+++ b/speexdsp-sys/Cargo.toml
@@ -13,7 +13,7 @@ categories = ["api-bindings"]
 [build-dependencies]
 autotools = "0.2"
 system-deps = "2.0"
-bindgen = "0.55"
+bindgen = "0.56"
 
 [dev-dependencies]
 byteorder = "1.3"