diff --git a/Gemfile b/Gemfile
index 089ae77..57966a5 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,8 +11,8 @@ source "https://rubygems.org"
 gem "jekyll", "~> 3.8.5"
 
 # This is the default theme for new Jekyll sites. You may change this to anything you like.
-gem "minima", "~> 2.0"
-gem "just-the-docs"
+gem "minima", "~> 2.5", ">= 2.5.0"
+gem "just-the-docs", ">= 0.2.3"
 
 # If you want to use GitHub Pages, remove the "gem "jekyll"" above and
 # uncomment the line below. To upgrade, run `bundle update github-pages`.
@@ -20,7 +20,7 @@ gem "just-the-docs"
 
 # If you have any plugins, put them here!
 group :jekyll_plugins do
-  gem "jekyll-feed", "~> 0.6"
+  gem "jekyll-feed", "~> 0.11", ">= 0.11.0"
 end
 
 # Windows does not include zoneinfo files, so bundle the tzinfo-data gem
diff --git a/Gemfile.lock b/Gemfile.lock
index e25c254..c4d2c49 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,22 +1,22 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     colorator (1.1.0)
-    concurrent-ruby (1.1.5)
-    em-websocket (0.5.1)
+    concurrent-ruby (1.1.9)
+    em-websocket (0.5.2)
       eventmachine (>= 0.12.9)
       http_parser.rb (~> 0.6.0)
     eventmachine (1.2.7)
     eventmachine (1.2.7-x64-mingw32)
-    ffi (1.10.0)
-    ffi (1.10.0-x64-mingw32)
+    ffi (1.15.3)
+    ffi (1.15.3-x64-mingw32)
     forwardable-extended (2.6.0)
     http_parser.rb (0.6.0)
     i18n (0.9.5)
       concurrent-ruby (~> 1.0)
-    jekyll (3.8.5)
+    jekyll (3.8.7)
       addressable (~> 2.4)
       colorator (~> 1.0)
       em-websocket (~> 0.5)
@@ -29,39 +29,38 @@ GEM
       pathutil (~> 0.9)
       rouge (>= 1.7, < 4)
       safe_yaml (~> 1.0)
-    jekyll-feed (0.11.0)
-      jekyll (~> 3.3)
+    jekyll-feed (0.15.1)
+      jekyll (>= 3.7, < 5.0)
     jekyll-sass-converter (1.5.2)
       sass (~> 3.4)
-    jekyll-seo-tag (2.5.0)
-      jekyll (~> 3.3)
-    jekyll-watch (2.1.2)
+    jekyll-seo-tag (2.7.1)
+      jekyll (>= 3.8, < 5.0)
+    jekyll-watch (2.2.1)
       listen (~> 3.0)
-    just-the-docs (0.2.3)
-      jekyll (~> 3.8.5)
-      rake (~> 12.3.1)
+    just-the-docs (0.3.3)
+      jekyll (>= 3.8.5)
+      jekyll-seo-tag (~> 2.0)
+      rake (>= 12.3.1, < 13.1.0)
     kramdown (1.17.0)
-    liquid (4.0.2)
-    listen (3.1.5)
-      rb-fsevent (~> 0.9, >= 0.9.4)
-      rb-inotify (~> 0.9, >= 0.9.7)
-      ruby_dep (~> 1.2)
+    liquid (4.0.3)
+    listen (3.5.1)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
     mercenary (0.3.6)
-    minima (2.5.0)
-      jekyll (~> 3.5)
+    minima (2.5.1)
+      jekyll (>= 3.5, < 5.0)
       jekyll-feed (~> 0.9)
       jekyll-seo-tag (~> 2.1)
     pathutil (0.16.2)
       forwardable-extended (~> 2.6)
-    public_suffix (3.0.3)
-    rake (12.3.2)
-    rb-fsevent (0.10.3)
-    rb-inotify (0.10.0)
+    public_suffix (4.0.6)
+    rake (13.0.4)
+    rb-fsevent (0.11.0)
+    rb-inotify (0.10.1)
       ffi (~> 1.0)
-    rouge (3.3.0)
-    ruby_dep (1.5.0)
+    rouge (3.26.0)
     safe_yaml (1.0.5)
-    sass (3.7.3)
+    sass (3.7.4)
       sass-listen (~> 4.0.0)
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
@@ -77,10 +76,10 @@ PLATFORMS
 
 DEPENDENCIES
   jekyll (~> 3.8.5)
-  jekyll-feed (~> 0.6)
-  just-the-docs
-  minima (~> 2.0)
+  jekyll-feed (~> 0.11, >= 0.11.0)
+  just-the-docs (>= 0.2.3)
+  minima (~> 2.5, >= 2.5.0)
   tzinfo-data
 
 BUNDLED WITH
-   2.0.1
+   2.1.4