diff --git a/pkgs/by-name/aw/aws-c-io/package.nix b/pkgs/by-name/aw/aws-c-io/package.nix
index 960d79c9a43d..d32850e017fd 100644
--- a/pkgs/by-name/aw/aws-c-io/package.nix
+++ b/pkgs/by-name/aw/aws-c-io/package.nix
@@ -12,13 +12,13 @@
 stdenv.mkDerivation (finalAttrs: {
   pname = "aws-c-io";
   # nixpkgs-update: no auto update
-  version = "0.27.2";
+  version = "1.0.0";
 
   src = fetchFromGitHub {
     owner = "awslabs";
     repo = "aws-c-io";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-0vzuSvJ/4you0YYnizjctKP5AcLm5sJieDOSCHwm1HM=";
+    hash = "sha256-gdu1v6ui9y5Y+tp0K0fpbE2e2O4Ky/WPEekphWbhUDQ=";
   };
 
   nativeBuildInputs = [ cmake ];