diff --git a/pkgs/development/libraries/toml-f/default.nix b/pkgs/development/libraries/toml-f/default.nix
index 696e41ac71cc..ed6fc26ee205 100644
--- a/pkgs/development/libraries/toml-f/default.nix
+++ b/pkgs/development/libraries/toml-f/default.nix
@@ -8,13 +8,13 @@
 
 stdenv.mkDerivation rec {
   pname = "toml-f";
-  version = "0.4.1";
+  version = "0.4.2";
 
   src = fetchFromGitHub {
     owner = pname;
     repo = pname;
     rev = "v${version}";
-    hash = "sha256-sCU0uMdcXIA5O964hlK37cOrLTlk1CJeTcWD9FhevOs=";
+    hash = "sha256-+cac4rUNpd2w3yBdH1XoCKdJ9IgOHZioZg8AhzGY0FE=";
   };
 
   nativeBuildInputs = [ gfortran cmake ];