Gemfile.lock in docx-builder-0.4.1 vs Gemfile.lock in docx-builder-0.5.0

@@ -1,20 +1,23 @@
 PATH
   remote: .
   specs:
-    docx-builder (0.4.1)
+    docx-builder (0.5.0)
 
 GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.2)
     bump (0.10.0)
     bundler-audit (0.9.1)
       bundler (>= 1.2.0, < 3)
       thor (~> 1.0)
     byebug (11.1.3)
+    concurrent-ruby (1.1.10)
     diff-lcs (1.5.0)
+    i18n (1.12.0)
+      concurrent-ruby (~> 1.0)
     mini_portile2 (2.8.0)
     nokogiri (1.13.10)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     parallel (1.22.1)
@@ -60,9 +63,10 @@
 DEPENDENCIES
   bump
   bundler-audit
   byebug
   docx-builder!
+  i18n
   nokogiri (~> 1.13.2)
   rake (~> 13.0)
   rspec (~> 3.0)
   rubocop (~> 0.80)
   rubyzip