diff --git a/pkgs/development/libraries/ngtcp2/gnutls.nix b/pkgs/development/libraries/ngtcp2/gnutls.nix
index ac8dec44412..ef73f06e34a 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 = "0.12.1";
+  version = "0.13.0";
 
   src = fetchFromGitHub {
     owner = "ngtcp2";
     repo = "ngtcp2";
     rev = "v${version}";
-    sha256 = "sha256-nUUbGNxr2pGiEoYbArHppNE29rki9SM/3MZWMS9HmqY=";
+    sha256 = "sha256-rKEF5R1GubgFiblmdTqh26PxTRxIqXUJHxj0Qwd3N00=";
   };
 
   outputs = [ "out" "dev" ];
diff --git a/pkgs/servers/dns/knot-dns/default.nix b/pkgs/servers/dns/knot-dns/default.nix
index 7e255c01d35..539dbd6a806 100644
--- a/pkgs/servers/dns/knot-dns/default.nix
+++ b/pkgs/servers/dns/knot-dns/default.nix
@@ -7,11 +7,11 @@
 
 stdenv.mkDerivation rec {
   pname = "knot-dns";
-  version = "3.2.4";
+  version = "3.2.5";
 
   src = fetchurl {
     url = "https://secure.nic.cz/files/knot-dns/knot-${version}.tar.xz";
-    sha256 = "299e8de918f9fc7ecbe625b41cb085e47cdda542612efbd51cd5ec60deb9dd13";
+    sha256 = "c6b122e92baa179d09ba4c8ce5b0d42fb7475805f4ff9c81d5036acfaa161820";
   };
 
   outputs = [ "bin" "out" "dev" ];
diff --git a/pkgs/servers/dns/knot-resolver/default.nix b/pkgs/servers/dns/knot-resolver/default.nix
index aee57689308..ed64f6b791f 100644
--- a/pkgs/servers/dns/knot-resolver/default.nix
+++ b/pkgs/servers/dns/knot-resolver/default.nix
@@ -90,7 +90,7 @@ unwrapped = stdenv.mkDerivation rec {
   doInstallCheck = with stdenv; hostPlatform == buildPlatform;
   nativeInstallCheckInputs = [ cmocka which cacert lua.cqueues lua.basexx lua.http ];
   installCheckPhase = ''
-    meson test --print-errorlogs
+    meson test --print-errorlogs --no-suite snowflake
   '';
 
   meta = with lib; {