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Diffstat (limited to 'arel.gemspec')
| -rw-r--r-- | arel.gemspec | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arel.gemspec b/arel.gemspec index 3924bd15d2..f0d2f66887 100644 --- a/arel.gemspec +++ b/arel.gemspec @@ -23,4 +23,5 @@ Gem::Specification.new do |s| s.add_development_dependency('minitest', '~> 5.4') s.add_development_dependency('rdoc', '~> 4.0') s.add_development_dependency('rake') + s.add_development_dependency('concurrent-ruby', '~> 1.0') end |