diff --git a/Gemfile b/Gemfile
index a0bbefcf..8162ee90 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ group :jekyll_plugins do
   gem "jekyll-feed", "~> 0.17"
   gem "jekyll-include-cache", "~> 0.2"
   gem "jekyll-last-modified-at", "~> 1.3"
-  gem "jekyll-minifier", "~> 0.1"
+  gem "jekyll-minifier", "~> 0.2"
   gem "jekyll-paginate", "~> 1.1"
   gem "jekyll-sass-converter", "~> 2.2"
   gem "jekyll-sitemap", "~> 1.4"
diff --git a/Gemfile.lock b/Gemfile.lock
index 102be16f..698d7f15 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -25,7 +25,7 @@ GEM
     colorator (1.1.0)
     concurrent-ruby (1.3.5)
     connection_pool (2.5.3)
-    cssminify2 (2.0.1)
+    cssminify2 (2.1.0)
     csv (3.3.5)
     drb (2.2.3)
     em-websocket (0.5.3)
@@ -84,12 +84,12 @@ GEM
       jekyll (>= 3.7, < 5.0)
     jekyll-last-modified-at (1.3.2)
       jekyll (>= 3.7, < 5.0)
-    jekyll-minifier (0.1.10)
-      cssminify2 (~> 2.0)
+    jekyll-minifier (0.2.1)
+      cssminify2 (~> 2.1.0)
       htmlcompressor (~> 0.4)
-      jekyll (>= 3.5)
+      jekyll (~> 4.0)
       json-minify (~> 0.0.3)
-      uglifier (~> 4.1)
+      terser (~> 1.2.3)
     jekyll-paginate (1.1.0)
     jekyll-sass-converter (2.2.0)
       sassc (> 2.0.1, < 3.0)
@@ -104,7 +104,7 @@ GEM
       gemoji (>= 3, < 5)
       html-pipeline (~> 2.2)
       jekyll (>= 3.0, < 5.0)
-    json (2.12.2)
+    json (2.13.2)
     json-minify (0.0.3)
       json (> 0)
     kramdown (2.5.1)
@@ -158,7 +158,7 @@ GEM
     rb-inotify (0.11.1)
       ffi (~> 1.0)
     rexml (3.4.1)
-    rouge (4.5.2)
+    rouge (4.6.0)
     safe_yaml (1.0.5)
     sassc (2.4.0)
       ffi (~> 1.9)
@@ -168,10 +168,10 @@ GEM
     securerandom (0.4.1)
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
+    terser (1.2.6)
+      execjs (>= 0.3.0, < 3)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
-    uglifier (4.2.1)
-      execjs (>= 0.3.0, < 3)
     unicode-display_width (2.6.0)
     uri (1.0.3)
     webrick (1.9.1)
@@ -192,7 +192,7 @@ DEPENDENCIES
   jekyll-feed (~> 0.17)
   jekyll-include-cache (~> 0.2)
   jekyll-last-modified-at (~> 1.3)
-  jekyll-minifier (~> 0.1)
+  jekyll-minifier (~> 0.2)
   jekyll-paginate (~> 1.1)
   jekyll-sass-converter (~> 2.2)
   jekyll-sitemap (~> 1.4)