diff --git a/Gemfile b/Gemfile
index bf44efe8..2ef175a1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,6 +1,6 @@
 source "https://rubygems.org"
 
-gem "jekyll", "~> 4.3.3"
+gem "jekyll", "~> 4.3.4"
 gem "rubyzip", "~> 2.3"
 gem "jekyll-sass-converter", "2.2.0"
 gem "jekyll-seo-tag", "~> 2.8.0"
diff --git a/Gemfile.lock b/Gemfile.lock
index e2258393..6994dc3e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,20 +1,22 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.8.6)
-      public_suffix (>= 2.0.2, < 6.0)
+    addressable (2.8.7)
+      public_suffix (>= 2.0.2, < 7.0)
     colorator (1.1.0)
-    concurrent-ruby (1.2.2)
+    concurrent-ruby (1.3.4)
     em-websocket (0.5.3)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0)
     eventmachine (1.2.7)
-    ffi (1.16.3)
+    ffi (1.17.0)
+    ffi (1.17.0-x86_64-darwin)
+    ffi (1.17.0-x86_64-linux-gnu)
     forwardable-extended (2.6.0)
     http_parser.rb (0.8.0)
-    i18n (1.14.1)
+    i18n (1.14.6)
       concurrent-ruby (~> 1.0)
-    jekyll (4.3.3)
+    jekyll (4.3.4)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
@@ -43,27 +45,25 @@ GEM
     kramdown-parser-gfm (1.1.0)
       kramdown (~> 2.0)
     liquid (4.0.4)
-    listen (3.8.0)
+    listen (3.9.0)
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.4.0)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (5.0.4)
+    public_suffix (6.0.1)
     rb-fsevent (0.11.2)
-    rb-inotify (0.10.1)
+    rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rexml (3.3.6)
-      strscan
-    rouge (4.2.0)
+    rexml (3.3.7)
+    rouge (4.4.0)
     rubyzip (2.3.2)
     safe_yaml (1.0.5)
     sassc (2.4.0)
       ffi (~> 1.9)
-    strscan (3.1.0)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
-    unicode-display_width (2.5.0)
+    unicode-display_width (2.6.0)
     webrick (1.8.1)
 
 PLATFORMS
@@ -72,7 +72,7 @@ PLATFORMS
   x86_64-linux
 
 DEPENDENCIES
-  jekyll (~> 4.3.3)
+  jekyll (~> 4.3.4)
   jekyll-sass-converter (= 2.2.0)
   jekyll-seo-tag (~> 2.8.0)
   jekyll-sitemap (~> 1.4.0)