diff --git a/day-04/bg-lib/Gemfile.lock b/day-04/bg-lib/Gemfile.lock
index 759c833..1d59a79 100644
--- a/day-04/bg-lib/Gemfile.lock
+++ b/day-04/bg-lib/Gemfile.lock
@@ -68,7 +68,7 @@ GEM
       archive-zip (~> 0.10)
       nokogiri (~> 1.8)
     coderay (1.1.2)
-    concurrent-ruby (1.1.5)
+    concurrent-ruby (1.1.10)
     crass (1.0.4)
     docile (1.3.2)
     erubi (1.8.0)
@@ -82,8 +82,8 @@ GEM
       i18n (>= 0.8)
     ffi (1.11.1)
     formatador (0.2.5)
-    globalid (0.4.2)
-      activesupport (>= 4.2.0)
+    globalid (1.0.1)
+      activesupport (>= 5.0)
     guard (2.15.0)
       formatador (>= 0.2.4)
       listen (>= 2.7, < 4.0)
@@ -97,7 +97,7 @@ GEM
     guard-minitest (2.4.6)
       guard-compat (~> 1.2)
       minitest (>= 3.0)
-    i18n (1.6.0)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
     image_processing (1.9.3)
       mini_magick (>= 4.9.5, < 5)
@@ -119,11 +119,13 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (0.9.2)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_magick (4.9.5)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
-    minitest (5.11.3)
+    minitest (5.17.0)
     msgpack (1.3.1)
     nenv (0.3.0)
     nio4r (2.4.0)
@@ -212,7 +214,7 @@ GEM
     turbolinks (5.2.0)
       turbolinks-source (~> 5.2)
     turbolinks-source (5.2.0)
-    tzinfo (1.2.5)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     uglifier (4.1.20)
       execjs (>= 0.3.0, < 3)