diff --git a/pkgs/development/libraries/fmt/default.nix b/pkgs/development/libraries/fmt/default.nix
index 796861a30654..fd35b697d7c2 100644
--- a/pkgs/development/libraries/fmt/default.nix
+++ b/pkgs/development/libraries/fmt/default.nix
@@ -1,14 +1,14 @@
 { stdenv, fetchFromGitHub, cmake, enableShared ? true }:
 
 stdenv.mkDerivation rec {
-  version = "5.3.0";
+  version = "6.0.0";
   pname = "fmt";
 
   src = fetchFromGitHub {
     owner = "fmtlib";
     repo = "fmt";
     rev = version;
-    sha256 = "1hl9s69a5ql5nckc0ifh2fzlgsgv1wsn6yhqkpnrhasqkhj0hgv4";
+    sha256 = "0yfrw6by4h27k3psv9x1q7z2kdbz7pkwxidr494bpa6ppglij6ba";
   };
 
   outputs = [ "out" "dev" ];
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   doCheck = true;
-  # preCheckHook ensures the test binaries can find libfmt.so.5
+  # preCheckHook ensures the test binaries can find libfmt.so
   preCheck = if enableShared
              then "export LD_LIBRARY_PATH=\"$PWD\""
              else "";