diff --git a/Gemfile.lock b/Gemfile.lock
index 384a047..1ead38c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,14 +1,14 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     colorator (1.1.0)
     concurrent-ruby (1.1.4)
-    ffi (1.10.0)
-    ffi (1.10.0-x64-mingw32)
+    ffi (1.15.5)
+    ffi (1.15.5-x64-mingw32)
     forwardable-extended (2.6.0)
-    jekyll (3.6.3)
+    jekyll (3.6.2)
       addressable (~> 2.4)
       colorator (~> 1.0)
       jekyll-sass-converter (~> 1.0)
@@ -33,19 +33,17 @@ GEM
       listen (~> 3.0)
     kramdown (1.17.0)
     liquid (4.0.3)
-    listen (3.1.5)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-      ruby_dep (~> 1.2)
+    listen (3.7.1)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.3)
-    rb-fsevent (0.10.3)
-    rb-inotify (0.10.0)
+    public_suffix (5.0.0)
+    rb-fsevent (0.11.2)
+    rb-inotify (0.10.1)
       ffi (~> 1.0)
     rouge (2.2.1)
-    ruby_dep (1.5.0)
     safe_yaml (1.0.5)
     sass (3.7.4)
       sass-listen (~> 4.0.0)