diff --git a/Gemfile b/Gemfile
index db91477..b10839d 100644
--- a/Gemfile
+++ b/Gemfile
@@ -22,6 +22,6 @@ gem "coderay", "~> 1.1.2"
 #   gem "jekyll-github-metadata", "~> 1.0"
 # end
 group :jekyll_plugins do
-    gem "jekyll-asciidoc", ">= 2.1.0"
+    gem "jekyll-asciidoc", ">= 3.0.1"
 end
 gem "json", ">= 2.3.0"
diff --git a/Gemfile.lock b/Gemfile.lock
index 7b06565..3984eb7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,12 +1,12 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
-    asciidoctor (2.0.10)
+    addressable (2.8.5)
+      public_suffix (>= 2.0.2, < 6.0)
+    asciidoctor (2.0.20)
     coderay (1.1.3)
     colorator (1.1.0)
-    ffi (1.13.1)
+    ffi (1.16.3)
     forwardable-extended (2.6.0)
     jekyll (3.6.3)
       addressable (~> 2.4)
@@ -19,8 +19,8 @@ GEM
       pathutil (~> 0.9)
       rouge (>= 1.7, < 3)
       safe_yaml (~> 1.0)
-    jekyll-asciidoc (3.0.0)
-      asciidoctor (>= 1.5.0)
+    jekyll-asciidoc (3.0.1)
+      asciidoctor (>= 1.5.0, < 3.0.0)
       jekyll (>= 3.0.0)
     jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
@@ -28,15 +28,15 @@ GEM
       listen (~> 3.0)
     json (2.3.1)
     kramdown (1.17.0)
-    liquid (4.0.3)
-    listen (3.2.1)
+    liquid (4.0.4)
+    listen (3.8.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (4.0.6)
-    rb-fsevent (0.10.4)
+    public_suffix (5.0.3)
+    rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
     rouge (2.2.1)
@@ -53,11 +53,11 @@ PLATFORMS
 DEPENDENCIES
   coderay (~> 1.1.2)
   jekyll (~> 3.6.3)
-  jekyll-asciidoc (>= 2.1.0)
+  jekyll-asciidoc (>= 3.0.1)
   json (>= 2.3.0)
 
 RUBY VERSION
-   ruby 2.7.1p83
+   ruby 2.7.8p225
 
 BUNDLED WITH
-   1.17.1
+   1.17.3