diff --git a/spree_product_assembly.gemspec b/spree_product_assembly.gemspec
index 343f376e..46eeedee 100644
--- a/spree_product_assembly.gemspec
+++ b/spree_product_assembly.gemspec
@@ -15,7 +15,7 @@ Gem::Specification.new do |s|
   s.require_path = 'lib'
   s.requirements << 'none'
 
-  s.add_dependency 'spree_backend', '~> 3.2.0'
+  s.add_dependency 'spree_backend', '~> 3.7.0'
 
   s.add_development_dependency 'active_model_serializers', '0.9.0.alpha1'
   s.add_development_dependency 'capybara', '~> 2.4'