1 files changed, 3 insertions, 3 deletions
diff --git a/pkgs/applications/video/mkvtoolnix/default.nix b/pkgs/applications/video/mkvtoolnix/default.nix
index 7db27888782a..68f3cac1bfac 100644
--- a/pkgs/applications/video/mkvtoolnix/default.nix
+++ b/pkgs/applications/video/mkvtoolnix/default.nix
@@ -13,13 +13,13 @@ with stdenv.lib;
 
 stdenv.mkDerivation rec {
   pname = "mkvtoolnix";
-  version = "46.0.0";
+  version = "47.0.0";
 
   src = fetchFromGitLab {
     owner  = "mbunkus";
     repo   = "mkvtoolnix";
     rev    = "release-${version}";
-    sha256 = "1vyfvpsllnzhzaaz3s9lqlnkmnqchyhxj2d47bfyizs982r5kg24";
+    sha256 = "1s8y9khyfjg06mr7rmm26pk0b3nbkcrs56r29a9l57wbkqyl7qp9";
   };
 
   nativeBuildInputs = [
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
     (enableFeature withGUI "qt")
   ];
 
-  CXXFLAGS = optional stdenv.cc.isClang "-std=c++14";
+  CXXFLAGS = optional stdenv.cc.isClang "-std=c++17";
 
   dontWrapQtApps = true;
   postFixup = optionalString withGUI ''