diff --git a/pkgs/by-name/js/json-fortran/package.nix b/pkgs/by-name/js/json-fortran/package.nix
index 9da0ffba7cd0..039f864779c9 100644
--- a/pkgs/by-name/js/json-fortran/package.nix
+++ b/pkgs/by-name/js/json-fortran/package.nix
@@ -8,13 +8,13 @@
 
 stdenv.mkDerivation rec {
   pname = "json-fortran";
-  version = "9.0.5";
+  version = "9.1.0";
 
   src = fetchFromGitHub {
     owner = "jacobwilliams";
     repo = "json-fortran";
     rev = version;
-    hash = "sha256-4IyysBcGKJKET8A5Bbbd5WJtlNh/7EdHuXsR6B/VDh0=";
+    hash = "sha256-MumYG9kfbtIMT0BQzHF2jZRT1yAUkfbQ/I0/LqRKnKk=";
   };
 
   nativeBuildInputs = [