diff --git a/Gemfile.lock b/Gemfile.lock
index 26fbce8..8f77958 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -279,7 +279,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.4.0)
+    rexml (3.4.2)
     rouge (3.30.0)
     rubyzip (2.4.1)
     safe_yaml (1.0.5)
@@ -304,7 +304,6 @@ GEM
     unicode-display_width (1.8.0)
     uri (1.0.3)
     verbal_expressions (0.1.5)
-    wdm (0.2.0)
     webrick (1.9.1)
 
 PLATFORMS
@@ -323,7 +322,6 @@ DEPENDENCIES
   minimal-mistakes-jekyll!
   rake
   tzinfo-data
-  wdm (~> 0.2.0)
 
 BUNDLED WITH
    2.6.2