diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index b5ce051..349b146 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -253,7 +253,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.3.4)
+    rexml (3.3.6)
       strscan
     rouge (3.30.0)
     rubyzip (2.3.2)
@@ -290,7 +290,7 @@ DEPENDENCIES
   jekyll-feed (~> 0.12)
   tzinfo (~> 1.2)
   tzinfo-data
-  wdm (~> 0.1.1)
+  wdm (~> 0.2.0)
 
 BUNDLED WITH
    2.2.17