diff --git a/Gemfile.lock b/Gemfile.lock
index 5d01d56..c735836 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -5,11 +5,10 @@ GEM
     addressable (2.8.6)
       public_suffix (>= 2.0.2, < 6.0)
     afm (0.2.2)
-    async (2.8.2)
-      console (~> 1.10)
+    async (2.17.0)
+      console (~> 1.26)
       fiber-annotation
-      io-event (~> 1.1)
-      timers (~> 4.1)
+      io-event (~> 1.6, >= 1.6.5)
     bigdecimal (3.1.8)
     colorator (1.1.0)
     concurrent-ruby (1.3.4)
@@ -33,7 +32,7 @@ GEM
     fiber-annotation (0.2.0)
     fiber-local (1.1.0)
       fiber-storage
-    fiber-storage (0.1.2)
+    fiber-storage (1.0.0)
     forwardable-extended (2.6.0)
     hashery (2.1.2)
     html-proofer (5.0.8)
@@ -48,7 +47,7 @@ GEM
     http_parser.rb (0.8.0)
     i18n (1.14.5)
       concurrent-ruby (~> 1.0)
-    io-event (1.5.1)
+    io-event (1.6.5)
     jekyll (4.3.3)
       addressable (~> 2.4)
       colorator (~> 1.0)
@@ -143,7 +142,6 @@ GEM
     strscan (3.1.0)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
-    timers (4.3.5)
     ttfunk (1.8.0)
       bigdecimal (~> 3.1)
     typhoeus (1.4.0)