diff --git a/pkgs/development/python-modules/liblarch/default.nix b/pkgs/development/python-modules/liblarch/default.nix
index 957d37f2176a..3700ebb85dde 100644
--- a/pkgs/development/python-modules/liblarch/default.nix
+++ b/pkgs/development/python-modules/liblarch/default.nix
@@ -10,7 +10,7 @@
 }:
 
 buildPythonPackage rec {
-  version = "3.0.1";
+  version = "3.2.0";
   pname = "liblarch";
   disabled = pythonOlder "3.5.0";
 
@@ -18,7 +18,7 @@ buildPythonPackage rec {
     owner = "getting-things-gnome";
     repo = "liblarch";
     rev = "v${version}";
-    sha256 = "0xv2mfvyzipbny3iz8vll77wsqxfwh28xj6bj1ff0l452waph45m";
+    sha256 = "sha256-A2qChe2z6rAhjRVX5VoHQitebf/nMATdVZQgtlquuYg=";
   };
 
   checkInputs = [
@@ -26,6 +26,8 @@ buildPythonPackage rec {
     gtk3
   ];
 
+  buildInputs = [ gtk3 ];
+
   propagatedBuildInputs = [
     pygobject3
   ];