diff --git a/frontend/spree_frontend.gemspec b/frontend/spree_frontend.gemspec
index d1226566371..0317a25d725 100644
--- a/frontend/spree_frontend.gemspec
+++ b/frontend/spree_frontend.gemspec
@@ -29,7 +29,7 @@ Gem::Specification.new do |s|
   s.add_dependency 'spree_core', ">= #{s.version}"
 
   s.add_dependency 'babel-transpiler', '~> 0.7'
-  s.add_dependency 'bootstrap',       '~> 4.0'
+  s.add_dependency 'bootstrap',       '>= 4', '< 6'
   s.add_dependency 'glyphicons',      '~> 1.0'
   s.add_dependency 'canonical-rails', '~> 0.2', '>= 0.2.10'
   s.add_dependency 'inline_svg',      '~> 1.5'