diff --git a/Gemfile.lock b/Gemfile.lock
index a3d3ce5..df4a9b9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     bulma-clean-theme (0.10.6)
       jekyll (~> 3.9)
       jekyll-feed (~> 0.15)
@@ -78,7 +78,7 @@ GEM
       sawyer (~> 0.8.0, >= 0.5.3)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.6)
+    public_suffix (5.0.0)
     rb-fsevent (0.10.4)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -99,7 +99,6 @@ GEM
       concurrent-ruby (~> 1.0)
     tzinfo-data (1.2021.1)
       tzinfo (>= 1.0.0)
-    wdm (0.1.1)
 
 PLATFORMS
   ruby
@@ -116,7 +115,6 @@ DEPENDENCIES
   jekyll-remote-theme
   kramdown-parser-gfm
   tzinfo-data
-  wdm (~> 0.1.0)
 
 BUNDLED WITH
    2.2.10