diff --git a/pkgs/development/libraries/libebml/default.nix b/pkgs/development/libraries/libebml/default.nix
index cbfcf5af042b..29c4b4c3b09f 100644
--- a/pkgs/development/libraries/libebml/default.nix
+++ b/pkgs/development/libraries/libebml/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "libebml";
-  version = "1.3.10";
+  version = "1.4.0";
 
   src = fetchFromGitHub {
     owner  = "Matroska-Org";
     repo   = "libebml";
     rev    = "release-${version}";
-    sha256 = "1vn0g4hsygrm29qvnzhrblpwjcy2x6swf799ibxv3bzpi1j0gris";
+    sha256 = "052v4mjynndj9xgfl4lmlsnx9ai0pah0kjyr5fm34l7gj8vhc5s7";
   };
 
   nativeBuildInputs = [ cmake pkgconfig ];