diff --git a/Gemfile b/Gemfile
index 33e467732a3f6991f41c5792c9fd272d82fa936a..bd34bb25d8aa1b0bbd76a1542d6631379c2d7a02 100644
--- a/Gemfile
+++ b/Gemfile
@@ -71,7 +71,7 @@ gem 'nsa', '~> 0.2'
 gem 'oj', '~> 3.10'
 gem 'ox', '~> 2.13'
 gem 'parslet'
-gem 'parallel', '~> 1.19'
+gem 'parallel', '~> 1.20'
 gem 'posix-spawn'
 gem 'pundit', '~> 2.1'
 gem 'premailer-rails'
diff --git a/Gemfile.lock b/Gemfile.lock
index 9ed0ed9ec0532656e99bb7967339fc852d984cdd..ae746f34db38b4c51535e5cdbc54133723bf0ac6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -391,7 +391,7 @@ GEM
     paperclip-av-transcoder (0.6.4)
       av (~> 0.9.0)
       paperclip (>= 2.5.2)
-    parallel (1.19.2)
+    parallel (1.20.0)
     parallel_tests (3.3.0)
       parallel
     parser (2.7.2.0)
@@ -746,7 +746,7 @@ DEPENDENCIES
   ox (~> 2.13)
   paperclip (~> 6.0)
   paperclip-av-transcoder (~> 0.6)
-  parallel (~> 1.19)
+  parallel (~> 1.20)
   parallel_tests (~> 3.3)
   parslet
   pg (~> 1.2)