diff --git a/Gemfile b/Gemfile
index 1dba4d810..1f08a37e9 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,7 +11,7 @@ gem "puma", "~> 6.4"
 gem "sass-rails", ">= 6"
 # Bundle and transpile JavaScript [https://github.com/rails/jsbundling-rails]
 gem "jsbundling-rails"
-gem "cssbundling-rails", "~> 1.3"
+gem "cssbundling-rails", "~> 1.4"
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
 gem "jbuilder", "~> 2.11"
 # Use Redis adapter to run Action Cable in production
diff --git a/Gemfile.lock b/Gemfile.lock
index 4134b4496..69b11f2b1 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -123,7 +123,7 @@ GEM
     concurrent-ruby (1.2.3)
     connection_pool (2.4.1)
     crass (1.0.6)
-    cssbundling-rails (1.3.3)
+    cssbundling-rails (1.4.0)
       railties (>= 6.0.0)
     database_cleaner-active_record (2.1.0)
       activerecord (>= 5.a)
@@ -483,7 +483,7 @@ DEPENDENCIES
   bootsnap (>= 1.4.4)
   byebug
   cocoon (~> 1.2)
-  cssbundling-rails (~> 1.3)
+  cssbundling-rails (~> 1.4)
   data_migrate!
   database_cleaner-active_record (~> 2.1)
   delayed_job_active_record (~> 4.1)