diff --git a/openssl-sys/Cargo.toml b/openssl-sys/Cargo.toml
index 402b61ca..4e738d57 100644
--- a/openssl-sys/Cargo.toml
+++ b/openssl-sys/Cargo.toml
@@ -21,7 +21,7 @@ libc = "0.2"
 cc = "1.0"
 openssl-src = { version = "111.0.1", optional = true }
 pkg-config = "0.3.9"
-autocfg = "0.1.2"
+autocfg = "1.0"
 
 [target.'cfg(target_env = "msvc")'.build-dependencies]
 vcpkg = "0.2"