diff --git a/pkgs/development/libraries/ngtcp2/gnutls.nix b/pkgs/development/libraries/ngtcp2/gnutls.nix
index 45f7d9d67db3..53d8454264bd 100644
--- a/pkgs/development/libraries/ngtcp2/gnutls.nix
+++ b/pkgs/development/libraries/ngtcp2/gnutls.nix
@@ -6,13 +6,13 @@
 
 stdenv.mkDerivation rec {
   pname = "ngtcp2";
-  version = "0.19.1";
+  version = "1.0.0";
 
   src = fetchFromGitHub {
     owner = "ngtcp2";
     repo = "ngtcp2";
     rev = "v${version}";
-    hash = "sha256-agiQRy/e5VS+ANxajXYi5huRjQQ2M8eddH/AzmwnHdQ=";
+    hash = "sha256-dnYIRcNGTIzETu2OjTJa0IWB1+xttdGFKRBmMkTwrXk=";
   };
 
   outputs = [ "out" "dev" ];