diff --git a/Gemfile.lock b/Gemfile.lock
index 32f35a7..b0d827d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -29,6 +29,8 @@ GEM
       rouge (~> 3.0)
       safe_yaml (~> 1.0)
       terminal-table (~> 2.0)
+    jekyll-redirect-from (0.16.0)
+      jekyll (>= 3.3, < 5.0)
     jekyll-sass-converter (2.1.0)
       sassc (> 2.0.1, < 3.0)
     jekyll-watch (2.2.1)
@@ -48,11 +50,13 @@ GEM
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rexml (3.2.5)
+    rexml (3.3.3)
+      strscan
     rouge (3.26.0)
     safe_yaml (1.0.5)
     sassc (2.4.0)
       ffi (~> 1.9)
+    strscan (3.1.0)
     terminal-table (2.0.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     unicode-display_width (1.7.0)
@@ -62,6 +66,7 @@ PLATFORMS
 
 DEPENDENCIES
   jekyll
+  jekyll-redirect-from
 
 RUBY VERSION
    ruby 3.0.2p107