diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index 3e0f2f6..f31ff81 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.1)
-      public_suffix (~> 2.0, >= 2.0.2)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     colorator (1.1.0)
     ffi (1.9.24)
     forwardable-extended (2.6.0)
@@ -30,10 +30,10 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.7)
     mercenary (0.3.6)
     minima (2.1.1)
-      jekyll (~>3.6.3)
+      jekyll (~> 3.6.3)
     pathutil (0.14.0)
       forwardable-extended (~> 2.6)
-    public_suffix (2.0.5)
+    public_suffix (5.0.0)
     rb-fsevent (0.9.8)
     rb-inotify (0.9.8)
       ffi (>= 1.9.24)