diff --git a/pkgs/development/libraries/libplctag/default.nix b/pkgs/development/libraries/libplctag/default.nix
index b5b628455d87..1cdac2817801 100644
--- a/pkgs/development/libraries/libplctag/default.nix
+++ b/pkgs/development/libraries/libplctag/default.nix
@@ -6,13 +6,13 @@
 
 stdenv.mkDerivation rec {
   pname = "libplctag";
-  version = "2.4.10";
+  version = "2.4.12";
 
   src = fetchFromGitHub {
     owner = "libplctag";
     repo = "libplctag";
     rev = "v${version}";
-    sha256 = "sha256-NdkWG7QdsMwx605m4P4LqBJTEqlIQhI3ChOvYwERkis=";
+    sha256 = "sha256-1gytTzGdB4Zq0LqbilNHbeA8wDmQ3dw36nocmjBeu+8=";
   };
 
   nativeBuildInputs = [ cmake ];