diff --git a/Gemfile.lock b/Gemfile.lock
index 9cb9c51..1f8d0ed 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -244,12 +244,9 @@ GEM
     thread_safe (0.3.6)
     typhoeus (1.4.0)
       ethon (>= 0.9.0)
-    tzinfo (1.2.7)
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
-    tzinfo-data (1.2020.1)
-      tzinfo (>= 1.0.0)
     unicode-display_width (1.7.0)
-    wdm (0.1.1)
     zeitwerk (2.4.0)
 
 PLATFORMS
@@ -263,9 +260,6 @@ DEPENDENCIES
   jekyll-feed (~> 0.12)
   jekyll-theme-modernist (~> 0.1.1)
   jekyll-timeago (~> 0.13.1)
-  tzinfo (~> 1.2)
-  tzinfo-data
-  wdm (~> 0.1.1)
 
 BUNDLED WITH
    2.1.4