diff --git a/core/solidus_core.gemspec b/core/solidus_core.gemspec
index 1d45721b215..1cb01114fb6 100644
--- a/core/solidus_core.gemspec
+++ b/core/solidus_core.gemspec
@@ -39,7 +39,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'kaminari-activerecord', '~> 1.1'
   s.add_dependency 'mini_magick', '~> 4.10'
   s.add_dependency 'monetize', '~> 1.8'
-  s.add_dependency 'paperclip', '>= 4.2'
+  s.add_dependency 'kt-paperclip', '~> 6.3'
   s.add_dependency 'ransack', '~> 2.0'
   s.add_dependency 'state_machines-activerecord', '~> 0.6'
 end