diff --git a/Gemfile b/Gemfile
index 4444f9d15..6f47d1ec0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -65,7 +65,7 @@ gem 'nsa', '~> 0.2'
 gem 'oj', '~> 3.13'
 gem 'ox', '~> 2.14'
 gem 'parslet'
-gem 'parallel', '~> 1.20'
+gem 'parallel', '~> 1.21'
 gem 'posix-spawn'
 gem 'pundit', '~> 2.1'
 gem 'premailer-rails'
diff --git a/Gemfile.lock b/Gemfile.lock
index 0757d1f81..c3a1d9782 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -397,7 +397,7 @@ GEM
       mime-types
       mimemagic (~> 0.3.0)
       terrapin (~> 0.6.0)
-    parallel (1.20.1)
+    parallel (1.21.0)
     parallel_tests (3.7.1)
       parallel
     parser (3.0.2.0)
@@ -739,7 +739,7 @@ DEPENDENCIES
   omniauth-saml (~> 1.10)
   ox (~> 2.14)
   paperclip (~> 6.0)
-  parallel (~> 1.20)
+  parallel (~> 1.21)
   parallel_tests (~> 3.7)
   parslet
   pg (~> 1.2)