diff --git a/Gemfile b/Gemfile
index 613940a9f33..5c9344ed851 100644
--- a/Gemfile
+++ b/Gemfile
@@ -142,7 +142,7 @@ gem 'icalendar'
 gem 'diffy', '~> 3.1.0'
 
 # Application server
-gem 'rack', '~> 2.0.7'
+gem 'rack', '~> 2.0.8'
 
 group :unicorn do
   gem 'unicorn', '~> 5.4.1'
diff --git a/Gemfile.lock b/Gemfile.lock
index d9b10a450ed..b1f5122a1ec 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -676,7 +676,7 @@ GEM
       puma (>= 2.7, < 4)
     pyu-ruby-sasl (0.0.3.3)
     raabro (1.1.6)
-    rack (2.0.7)
+    rack (2.0.8)
     rack-accept (0.4.5)
       rack (>= 0.4)
     rack-attack (4.4.1)
@@ -1186,7 +1186,7 @@ DEPENDENCIES
   pry-rails (~> 0.3.4)
   puma (~> 3.12)
   puma_worker_killer
-  rack (~> 2.0.7)
+  rack (~> 2.0.8)
   rack-attack (~> 4.4.1)
   rack-cors (~> 1.0.0)
   rack-oauth2 (~> 1.9.3)