diff --git a/pkgs/development/ruby-modules/with-packages/Gemfile b/pkgs/development/ruby-modules/with-packages/Gemfile
index a777e32cdfba..0a09bba986d7 100644
--- a/pkgs/development/ruby-modules/with-packages/Gemfile
+++ b/pkgs/development/ruby-modules/with-packages/Gemfile
@@ -144,6 +144,7 @@ gem 'thrift'
 gem 'tilt'
 gem 'tiny_tds'
 gem 'treetop'
+gem 'tty-command'
 gem 'tty-option'
 gem 'typhoeus'
 gem 'tzinfo'
diff --git a/pkgs/top-level/ruby-packages.nix b/pkgs/top-level/ruby-packages.nix
index 5dce28d6e2d2..ec444cce32ff 100644
--- a/pkgs/top-level/ruby-packages.nix
+++ b/pkgs/top-level/ruby-packages.nix
@@ -2152,6 +2152,17 @@
     };
     version = "1.0.3";
   };
+  pastel = {
+    dependencies = ["tty-color"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0xash2gj08dfjvq4hy6l1z22s5v30fhizwgs10d6nviggpxsj7a8";
+      type = "gem";
+    };
+    version = "0.8.0";
+  };
   pathutil = {
     dependencies = ["forwardable-extended"];
     groups = ["default"];
@@ -3097,6 +3108,27 @@
     };
     version = "1.6.11";
   };
+  tty-color = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0aik4kmhwwrmkysha7qibi2nyzb4c8kp42bd5vxnf8sf7b53g73g";
+      type = "gem";
+    };
+    version = "0.6.0";
+  };
+  tty-command = {
+    dependencies = ["pastel"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "14hi8xiahfrrnydw6g3i30lxvvz90wp4xsrlhx8mabckrcglfv0c";
+      type = "gem";
+    };
+    version = "0.10.1";
+  };
   tty-option = {
     groups = ["default"];
     platforms = [];