diff --git a/Gemfile.lock b/Gemfile.lock
index fc0bb13..f7c0c12 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,14 +4,12 @@ GEM
     addressable (2.8.0)
       public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
-    concurrent-ruby (1.1.10)
+    concurrent-ruby (1.3.7)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
     eventmachine (1.2.7)
-    eventmachine (1.2.7-x64-mingw32)
     ffi (1.15.5)
-    ffi (1.15.5-x64-mingw32)
     forwardable-extended (2.6.0)
     http_parser.rb (0.8.0)
     i18n (1.12.0)
@@ -60,8 +58,6 @@ GEM
     safe_yaml (1.0.5)
     sassc (2.4.0)
       ffi (~> 1.9)
-    sassc (2.4.0-x64-mingw32)
-      ffi (~> 1.9)
     terminal-table (2.0.0)
       unicode-display_width (~> 1.1, >= 1.1.1)
     tzinfo (2.0.5)
@@ -73,7 +69,7 @@ GEM
 
 PLATFORMS
   ruby
-  x64-mingw32
+  x64-mingw-ucrt
 
 DEPENDENCIES
   jekyll-redirect-from