diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index f5700623a66..dc369d54782 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -2308,15 +2308,16 @@ let self = _self // overrides; _self = with self; {
     };
   };
 
-  ConfigGrammar = buildPerlPackage {
-    name = "Config-Grammar-1.11";
+  ConfigGrammar = buildPerlPackage rec {
+    name = "Config-Grammar-1.12";
     src = fetchurl {
-      url = mirror://cpan/authors/id/D/DS/DSCHWEI/Config-Grammar-1.11.tar.gz;
-      sha256 = "dd819f89b19c51e9fac6965360cd9db54436e1328968c802416ac34188ca65ee";
+      url = "mirror://cpan/authors/id/D/DS/DSCHWEI/${name}.tar.gz";
+      sha256 = "7a52a3657d96e6f1f529caaa09ec3bf7dd6a245b47875382c323902f6d9590b0";
     };
     meta = {
+      homepage = https://github.com/schweikert/Config-Grammar;
       description = "A grammar-based, user-friendly config parser";
-      license = "unknown";
+      license = with stdenv.lib.licenses; [ artistic1 gpl1Plus ];
     };
   };