diff --git a/Gemfile.lock b/Gemfile.lock
index b9f4035..500bbac 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -20,7 +20,7 @@ GEM
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
     eventmachine (1.2.7)
-    faraday (1.0.0)
+    faraday (1.0.1)
       multipart-post (>= 1.2, < 3)
     ffi (1.12.2)
     forwardable-extended (2.6.0)
@@ -55,7 +55,8 @@ GEM
       jekyll (>= 3.7, < 5.0)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
-    kramdown (2.1.0)
+    kramdown (2.3.0)
+      rexml
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     liquid (4.0.3)
@@ -64,16 +65,17 @@ GEM
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
     multipart-post (2.1.1)
-    octokit (4.17.0)
+    octokit (4.18.0)
       faraday (>= 0.9)
       sawyer (~> 0.8.0, >= 0.5.3)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.3)
+    public_suffix (4.0.5)
     rake (13.0.1)
     rb-fsevent (0.10.3)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
+    rexml (3.2.4)
     rouge (3.17.0)
     safe_yaml (1.0.5)
     sassc (2.2.1)