Gemfile.lock in export_to-0.1.0 vs Gemfile.lock in export_to-0.1.1

@@ -1,47 +1,37 @@
 PATH
   remote: .
   specs:
     export_to (0.1.0)
       activesupport
+      fast_excel
       iconv
-      roo
       spreadsheet
-      write_xlsx
 
 GEM
   remote: https://rubygems.org/
   specs:
     activesupport (5.2.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     concurrent-ruby (1.0.5)
+    fast_excel (0.2.5)
+      ffi (> 1.9, < 2)
+    ffi (1.9.25)
     i18n (1.1.1)
       concurrent-ruby (~> 1.0)
     iconv (1.0.5)
-    mini_portile2 (2.3.0)
     minitest (5.11.3)
-    nokogiri (1.8.5)
-      mini_portile2 (~> 2.3.0)
     rake (10.5.0)
-    roo (2.7.1)
-      nokogiri (~> 1)
-      rubyzip (~> 1.1, < 2.0.0)
     ruby-ole (1.2.12.1)
-    rubyzip (1.2.2)
     shoulda-context (1.2.2)
     spreadsheet (1.1.8)
       ruby-ole (>= 1.0)
     thread_safe (0.3.6)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)
-    write_xlsx (0.85.5)
-      rubyzip (>= 1.0.0)
-      zip-zip
-    zip-zip (0.3)
-      rubyzip (>= 1.0.0)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES