diff --git a/Gemfile.lock b/Gemfile.lock
index 73bffb5..436357a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.7.0)
+    addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
     ffi (1.14.2)
@@ -23,7 +23,7 @@ GEM
       sass (~> 3.4)
     jekyll-watch (1.5.1)
       listen (~> 3.0)
-    kramdown (2.3.0)
+    kramdown (1.17.0)
     liquid (4.0.3)
     listen (3.4.1)
       rb-fsevent (~> 0.10, >= 0.10.3)