diff --git a/pkgs/development/libraries/ngtcp2/gnutls.nix b/pkgs/development/libraries/ngtcp2/gnutls.nix
index 66d343bac07d..2576638a9b9f 100644
--- a/pkgs/development/libraries/ngtcp2/gnutls.nix
+++ b/pkgs/development/libraries/ngtcp2/gnutls.nix
@@ -12,13 +12,13 @@
 
 stdenv.mkDerivation rec {
   pname = "ngtcp2";
-  version = "1.14.0";
+  version = "1.15.0";
 
   src = fetchFromGitHub {
     owner = "ngtcp2";
     repo = "ngtcp2";
     rev = "v${version}";
-    hash = "sha256-TpfCfVhguFbTqQiY+zl6Kn7fsIQHR1tvNC4YLkxmBis=";
+    hash = "sha256-/4nnKkc50Dye3fTRPDr3YnjpwBOM9WpgS123y72O/Qo=";
   };
 
   outputs = [