Gemfile.lock in ruby_pager-0.1.2 vs Gemfile.lock in ruby_pager-0.1.3

@@ -1,18 +1,18 @@
 PATH
   remote: .
   specs:
-    ruby_pager (0.1.0)
+    ruby_pager (0.1.2)
       awesome_print
       extendmatrix
       gosu
       nokogiri
       nori
+      optimist
       pry
       rgeo
       rmagick
-      trollop
 
 GEM
   remote: https://rubygems.org/
   specs:
     aruba (0.14.6)
@@ -48,19 +48,20 @@
     diff-lcs (1.3)
     docile (1.3.1)
     extendmatrix (0.4)
     ffi (1.9.25)
     gherkin (5.1.0)
-    gosu (0.13.3)
+    gosu (0.14.0)
     json (2.1.0)
     method_source (0.9.0)
     mini_portile2 (2.3.0)
     multi_json (1.13.1)
     multi_test (0.1.2)
     nokogiri (1.8.4)
       mini_portile2 (~> 2.3.0)
     nori (2.6.0)
+    optimist (3.0.0)
     pry (0.11.3)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
     rake (12.3.1)
     rgeo (1.1.1)
@@ -82,10 +83,9 @@
       docile (~> 1.1)
       json (>= 1.8, < 3)
       simplecov-html (~> 0.10.0)
     simplecov-html (0.10.2)
     thor (0.20.0)
-    trollop (2.1.3)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES