diff --git a/Gemfile.lock b/Gemfile.lock
index a8c2213..9c7fbc4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,11 +2,11 @@ GEM
   remote: https://rubygems.org/
   specs:
     RedCloth (4.2.9)
-    activesupport (5.0.0.1)
+    activesupport (7.0.4.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (~> 0.7)
-      minitest (~> 5.1)
-      tzinfo (~> 1.1)
+      i18n (>= 1.6, < 2)
+      minitest (>= 5.1)
+      tzinfo (~> 2.0)
     addressable (2.4.0)
     blankslate (2.1.2.4)
     classifier-reborn (2.0.4)
@@ -16,7 +16,7 @@ GEM
       execjs
     coffee-script-source (1.10.0)
     colorator (0.1)
-    concurrent-ruby (1.0.2)
+    concurrent-ruby (1.1.10)
     ethon (0.9.1)
       ffi (>= 1.3.0)
     execjs (2.7.0)
@@ -51,7 +51,8 @@ GEM
     html-pipeline (1.9.0)
       activesupport (>= 2)
       nokogiri (~> 1.4)
-    i18n (0.7.0)
+    i18n (1.12.0)
+      concurrent-ruby (~> 1.0)
     jekyll (2.4.0)
       classifier-reborn (~> 2.0)
       colorator (~> 0.1)
@@ -95,7 +96,7 @@ GEM
     maruku (0.7.0)
     mercenary (0.3.6)
     mini_portile2 (2.1.0)
-    minitest (5.9.1)
+    minitest (5.17.0)
     multipart-post (2.0.0)
     net-dns (0.8.0)
     nokogiri (1.6.8.1)
@@ -121,13 +122,12 @@ GEM
       faraday (~> 0.8, < 1.0)
     terminal-table (1.7.3)
       unicode-display_width (~> 1.1.1)
-    thread_safe (0.3.5)
     toml (0.1.2)
       parslet (~> 1.5.0)
     typhoeus (0.8.0)
       ethon (>= 0.8.0)
-    tzinfo (1.2.2)
-      thread_safe (~> 0.1)
+    tzinfo (2.0.5)
+      concurrent-ruby (~> 1.0)
     unicode-display_width (1.1.1)
     yajl-ruby (1.2.1)