diff --git a/Gemfile.lock b/Gemfile.lock
index 7c594ab..c9b51bf 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 (2.9.0)
+      public_suffix (>= 2.0.2, < 8.0)
     asciidoctor (2.0.10)
     bibtex-ruby (4.4.7)
       latex-decode (~> 0.0)
@@ -19,7 +19,6 @@ GEM
       csl (~> 1.0)
     ffi (1.13.1)
     ffi (1.13.1-java)
-    ffi (1.13.1-x64-mingw32)
     ffi (1.13.1-x86-mingw32)
     forwardable-extended (2.6.0)
     jekyll (3.6.3)
@@ -64,7 +63,7 @@ GEM
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
     posix-spawn (0.3.15)
-    public_suffix (4.0.5)
+    public_suffix (7.0.5)
     pygments.rb (1.2.1)
       multi_json (>= 1.0.0)
     rb-fsevent (0.10.4)
@@ -86,7 +85,7 @@ GEM
 PLATFORMS
   java
   ruby
-  x64-mingw32
+  x64-mingw-ucrt
   x86-mingw32
   x86-mswin32