diff --git a/pkgs/development/libraries/ngtcp2/gnutls.nix b/pkgs/development/libraries/ngtcp2/gnutls.nix
index 08b0ecea74a6..b8b0e03308ae 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 = "0.8.1";
+  version = "0.9.0";
 
   src = fetchFromGitHub {
     owner = "ngtcp2";
     repo = "ngtcp2";
     rev = "v${version}";
-    sha256 = "sha256-Sn03nY80UmL5oeoK6ScPye1oSUmEKxgoz2VLHcvor3U=";
+    sha256 = "sha256-nfXEX1GxtmOcb0reRyO0OyQkSHeUWtQW+SZ8thxor+s=";
   };
 
   outputs = [ "out" "dev" ];