diff --git a/Gemfile b/Gemfile
index e903850..4af7307 100644
--- a/Gemfile
+++ b/Gemfile
@@ -23,7 +23,7 @@ gem 'bcrypt', '~> 3.1.7'
 # gem 'capistrano-rails', group: :development
 
 # Use Rack CORS for handling Cross-Origin Resource Sharing (CORS), making cross-origin AJAX possible
-gem 'rack-cors', '1.0.2'
+gem 'rack-cors', '1.0.5'
 
 # For handling date validation
 gem 'validates_timeliness', '4.0.2'
diff --git a/Gemfile.lock b/Gemfile.lock
index 6a05bfc..5c366ba 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -144,7 +144,8 @@ GEM
     rack (2.0.4)
     rack-contrib (2.0.1)
       rack (~> 2.0)
-    rack-cors (1.0.2)
+    rack-cors (1.0.5)
+      rack (>= 1.6.0)
     rack-test (0.8.3)
       rack (>= 1.0, < 3)
     rails (5.1.5)
@@ -230,7 +231,7 @@ DEPENDENCIES
   listen (>= 3.0.5, < 3.2)
   meta_request (= 0.5.0)
   puma (~> 3.7)
-  rack-cors (= 1.0.2)
+  rack-cors (= 1.0.5)
   rails (~> 5.1.5)
   shoulda (= 2.11.3)
   shoulda-matchers (= 3.1.2)