diff --git a/Gemfile b/Gemfile
index bda3f75098c..e08d61455ce 100644
--- a/Gemfile
+++ b/Gemfile
@@ -18,7 +18,7 @@ group :jekyll_plugins do
   gem 'jekyll-commonmark', '1.3.1'
 end
 
-gem 'sinatra', '2.0.8.1'
+gem 'sinatra', '2.1.0'
 gem 'nokogiri', '1.10.10'
 
 # Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
diff --git a/Gemfile.lock b/Gemfile.lock
index 3111dee22e0..b3f27a004e3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -81,7 +81,7 @@ GEM
       forwardable-extended (~> 2.6)
     public_suffix (4.0.6)
     rack (2.2.3)
-    rack-protection (2.0.8.1)
+    rack-protection (2.1.0)
       rack
     rake (13.0.1)
     rb-fsevent (0.10.4)
@@ -100,10 +100,10 @@ GEM
       ffi (~> 1.9)
     sassc (2.4.0-x64-mingw32)
       ffi (~> 1.9)
-    sinatra (2.0.8.1)
+    sinatra (2.1.0)
       mustermann (~> 1.0)
-      rack (~> 2.0)
-      rack-protection (= 2.0.8.1)
+      rack (~> 2.2)
+      rack-protection (= 2.1.0)
       tilt (~> 2.0)
     stringex (2.8.5)
     terminal-table (1.8.0)
@@ -130,7 +130,7 @@ DEPENDENCIES
   nokogiri (= 1.10.10)
   rake (= 13.0.1)
   sass-globbing (= 1.1.5)
-  sinatra (= 2.0.8.1)
+  sinatra (= 2.1.0)
   stringex (= 2.8.5)
   tzinfo (~> 2.0)
   tzinfo-data