diff --git a/pkgs/development/ruby-modules/solargraph/default.nix b/pkgs/development/ruby-modules/solargraph/default.nix
index 83f1dddeeb6..39520fdb0ba 100644
--- a/pkgs/development/ruby-modules/solargraph/default.nix
+++ b/pkgs/development/ruby-modules/solargraph/default.nix
@@ -1,4 +1,4 @@
-{ lib, bundlerApp, ruby }:
+{ lib, bundlerApp }:
 
 bundlerApp rec {
   pname = "solargraph";
diff --git a/pkgs/tools/admin/oxidized/default.nix b/pkgs/tools/admin/oxidized/default.nix
index 590f6ea55ca..25b8bdb6585 100644
--- a/pkgs/tools/admin/oxidized/default.nix
+++ b/pkgs/tools/admin/oxidized/default.nix
@@ -1,4 +1,4 @@
-{ lib, fetchFromGitHub, ruby, git, bundlerApp }:
+{ lib, ruby, bundlerApp }:
 
 bundlerApp rec {
   pname = "oxidized";
diff --git a/pkgs/tools/typesetting/asciidoctor/default.nix b/pkgs/tools/typesetting/asciidoctor/default.nix
index b1fe301775c..1f6a7054b9e 100644
--- a/pkgs/tools/typesetting/asciidoctor/default.nix
+++ b/pkgs/tools/typesetting/asciidoctor/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, lib, bundlerApp, ruby, curl
+{ stdenv, lib, bundlerApp, ruby
   # Dependencies of the 'mathematical' package
 , cmake, bison, flex, glib, pkgconfig, cairo
 , pango, gdk_pixbuf, libxml2, python3, patchelf