diff --git a/Gemfile b/Gemfile
index 126b63a797..ad10f56047 100644
--- a/Gemfile
+++ b/Gemfile
@@ -17,7 +17,7 @@ gem 'sass-rails', '< 5.1.0' # this restriction originates from the compass-rails
 gem 'webpacker', '~> 5'
 
 gem 'i18n'
-gem 'i18n-js', '~> 3.8.4'
+gem 'i18n-js', '~> 3.9.0'
 gem 'rails-i18n'
 gem 'rails_safe_tasks', '~> 1.0'
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 13c7bb4ee0..803b5217e4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -336,7 +336,7 @@ GEM
     hiredis (0.6.3)
     i18n (1.8.10)
       concurrent-ruby (~> 1.0)
-    i18n-js (3.8.4)
+    i18n-js (3.9.0)
       i18n (>= 0.6.6)
     immigrant (0.3.6)
       activerecord (>= 3.0)
@@ -744,7 +744,7 @@ DEPENDENCIES
   highline (= 2.0.3)
   hiredis
   i18n
-  i18n-js (~> 3.8.4)
+  i18n-js (~> 3.9.0)
   immigrant
   jquery-migrate-rails
   jquery-rails (= 4.4.0)