diff --git a/pkgs/by-name/js/json-fortran/package.nix b/pkgs/by-name/js/json-fortran/package.nix
index 011de8916353..9249ccff0824 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 (finalAttrs: {
   pname = "json-fortran";
-  version = "9.3.0";
+  version = "9.3.1";
 
   src = fetchFromGitHub {
     owner = "jacobwilliams";
     repo = "json-fortran";
     rev = finalAttrs.version;
-    hash = "sha256-shSMIiA2laNxqRmnsBBOgJDhWdXr/ULEWVkugHCEs+0=";
+    hash = "sha256-anPasaS4Kq8r6P7EgrQ3auwvSylq/a/ZO1XhYw6zAU4=";
   };
 
   nativeBuildInputs = [