diff --git a/pkgs/development/python-modules/peakrdl-cheader/default.nix b/pkgs/development/python-modules/peakrdl-cheader/default.nix
index f3c6287ee576..1bef65a58fee 100644
--- a/pkgs/development/python-modules/peakrdl-cheader/default.nix
+++ b/pkgs/development/python-modules/peakrdl-cheader/default.nix
@@ -10,17 +10,17 @@
   systemrdl-compiler,
 }:
 
-buildPythonPackage rec {
+buildPythonPackage (finalAttrs: {
   pname = "peakrdl-cheader";
-  version = "1.0.0";
+  version = "1.1.0";
 
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "SystemRDL";
     repo = "PeakRDL-cheader";
-    tag = "v${version}";
-    hash = "sha256-1LxKGCea5ClKmrArl+CM6ZRpiTh2ThbYSe9TYYHjRlY=";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-IPGNauPA9y1HNEbk3eEOog17++/gSJt+185i+DFb54U=";
   };
 
   build-system = [
@@ -39,7 +39,7 @@ buildPythonPackage rec {
   meta = {
     description = "C Header generator for a SystemRDL definition";
     homepage = "https://peakrdl-cheader.readthedocs.io/";
-    license = lib.licenses.lgpl3;
+    license = lib.licenses.lgpl3Only;
     maintainers = [ lib.maintainers.jmbaur ];
   };
-}
+})