diff --git a/Gemfile.lock b/Gemfile.lock
index e96cd84..e4077cc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,17 +9,17 @@ PATH
 GEM
   remote: http://rubygems.org/
   specs:
-    activesupport (4.2.2)
-      i18n (~> 0.7)
-      json (~> 1.7, >= 1.7.7)
-      minitest (~> 5.1)
-      thread_safe (~> 0.3, >= 0.3.4)
-      tzinfo (~> 1.1)
+    activesupport (7.0.4.3)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 1.6, < 2)
+      minitest (>= 5.1)
+      tzinfo (~> 2.0)
+    concurrent-ruby (1.2.2)
     diff-lcs (1.2.5)
-    i18n (0.7.0)
-    json (1.8.3)
+    i18n (1.12.0)
+      concurrent-ruby (~> 1.0)
     mini_portile (0.6.2)
-    minitest (5.7.0)
+    minitest (5.18.0)
     nokogiri (1.6.6.4)
       mini_portile (~> 0.6.0)
     rspec (3.3.0)
@@ -35,9 +35,8 @@ GEM
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.3.0)
     rspec-support (3.3.0)
-    thread_safe (0.3.5)
-    tzinfo (1.2.2)
-      thread_safe (~> 0.1)
+    tzinfo (2.0.6)
+      concurrent-ruby (~> 1.0)
 
 PLATFORMS
   ruby