diff --git a/Gemfile.lock b/Gemfile.lock
index 24abfb3..7aba57b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.8.9)
+    addressable (2.9.0)
       public_suffix (>= 2.0.2, < 8.0)
     base64 (0.3.0)
     bigdecimal (4.0.1)
@@ -68,7 +68,7 @@ GEM
     mercenary (0.4.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (7.0.2)
+    public_suffix (7.0.5)
     rake (13.3.1)
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
@@ -83,7 +83,6 @@ GEM
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
     unicode-display_width (2.6.0)
-    wdm (0.2.0)
     webrick (1.9.2)
 
 PLATFORMS
@@ -95,7 +94,6 @@ DEPENDENCIES
   jekyll-redirect-from
   jekyll-seo-tag
   jekyll-sitemap
-  wdm (>= 0.2.0)
 
 BUNDLED WITH
   4.0.7