diff --git a/Gemfile b/Gemfile
index 70dec18..d616c00 100644
--- a/Gemfile
+++ b/Gemfile
@@ -27,7 +27,7 @@ group :development, :unit_tests do
   gem 'rubocop',                                          '~> 0.79'
   gem 'tty-command',                                      '~> 0.6'
   gem 'tty-file',                                         '~> 0.4'
-  gem 'tty-prompt',                                       '~> 0.13'
+  gem 'tty-prompt',                                       '~> 0.21'
   gem 'yamllint',                                         '~> 0.0.9'
 
   # puppet-lint and plugins
diff --git a/Gemfile.lock b/Gemfile.lock
index e72b8aa..c66a273 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -135,15 +135,15 @@ GEM
     spdx-licenses (1.2.0)
     text (1.3.1)
     trollop (2.9.10)
-    tty-color (0.5.0)
+    tty-color (0.5.1)
     tty-command (0.9.0)
       pastel (~> 0.7.0)
-    tty-cursor (0.7.0)
+    tty-cursor (0.7.1)
     tty-file (0.8.0)
       diff-lcs (~> 1.3)
       pastel (~> 0.7.2)
       tty-prompt (~> 0.18)
-    tty-prompt (0.20.0)
+    tty-prompt (0.21.0)
       necromancer (~> 0.5.0)
       pastel (~> 0.7.0)
       tty-reader (~> 0.7.0)
@@ -151,7 +151,7 @@ GEM
       tty-cursor (~> 0.7)
       tty-screen (~> 0.7)
       wisper (~> 2.0.0)
-    tty-screen (0.7.0)
+    tty-screen (0.7.1)
     unicode-display_width (1.6.0)
     wisper (2.0.1)
     xmlrpc (0.3.0)
@@ -186,7 +186,7 @@ DEPENDENCIES
   rugged (~> 0.26)
   tty-command (~> 0.6)
   tty-file (~> 0.4)
-  tty-prompt (~> 0.13)
+  tty-prompt (~> 0.21)
   xmlrpc (~> 0.3.0)
   yamllint (~> 0.0.9)