diff --git a/pkgs/applications/blockchains/clightning/default.nix b/pkgs/applications/blockchains/clightning/default.nix
index 8e87610e03f..4dfeebfe096 100644
--- a/pkgs/applications/blockchains/clightning/default.nix
+++ b/pkgs/applications/blockchains/clightning/default.nix
@@ -7,6 +7,7 @@
 , automake
 , gettext
 , libtool
+, lowdown
 , protobuf
 , unzip
 , which
@@ -21,30 +22,21 @@ let
 in
 stdenv.mkDerivation rec {
   pname = "clightning";
-  version = "0.12.0";
+  version = "0.12.1";
 
   src = fetchurl {
     url = "https://github.com/ElementsProject/lightning/releases/download/v${version}/clightning-v${version}.zip";
-    sha256 = "1ff400339db3d314b459e1a3e973f1213783e814faa21f2e1b18917693cabfd9";
-  };
-
-  manpages = fetchurl {
-    url = "https://github.com/ElementsProject/lightning/releases/download/v${version}/clightning-v${version}-manpages.tar.xz";
-    sha256 = "sha256-7EohXp0/gIJwlMsTHwlcLNBzZb8LwF9n0eXkQhOnY7g=";
+    sha256 = "sha256-SlDDOJ6H2UVT/dof23CYSzCliAc+5CAYQc87AzOtYjg=";
   };
 
   # when building on darwin we need dawin.cctools to provide the correct libtool
   # as libwally-core detects the host as darwin and tries to add the -static
   # option to libtool, also we have to add the modified gsed package.
-  nativeBuildInputs = [ autoconf autogen automake gettext libtool protobuf py3 unzip which ]
+  nativeBuildInputs = [ autoconf autogen automake gettext libtool lowdown protobuf py3 unzip which ]
     ++ lib.optionals stdenv.isDarwin [ darwin.cctools darwin.autoSignDarwinBinariesHook ];
 
   buildInputs = [ gmp libsodium sqlite zlib ];
 
-  postUnpack = ''
-    tar -xf $manpages -C $sourceRoot
-  '';
-
   # this causes some python trouble on a darwin host so we skip this step.
   # also we have to tell libwally-core to use sed instead of gsed.
   postPatch = if !stdenv.isDarwin then ''