diff --git a/Gemfile.lock b/Gemfile.lock
index 7312ff5..e8fb351 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -63,11 +63,13 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.6)
+    rexml (3.3.3)
+      strscan
     rouge (4.1.3)
     safe_yaml (1.0.5)
     sassc (2.4.0)
       ffi (~> 1.9)
+    strscan (3.1.0)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     unicode-display_width (2.4.2)
@@ -81,8 +83,6 @@ DEPENDENCIES
   jekyll-feed (~> 0.6)
   jekyll-sass-converter (< 3.0)
   minima (~> 2.5.1)
-  tzinfo-data
-  webrick
 
 BUNDLED WITH
    2.3.25