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-rw-r--r--spec/support/rubygems_ext.rb3
1 files changed, 2 insertions, 1 deletions
diff --git a/spec/support/rubygems_ext.rb b/spec/support/rubygems_ext.rb
index 3c8d97b83c..62e2274fbe 100644
--- a/spec/support/rubygems_ext.rb
+++ b/spec/support/rubygems_ext.rb
@@ -23,7 +23,8 @@ module Spec
"rake" => "13.0.1",
"builder" => "~> 3.2",
# ruby-graphviz is used by the viz tests
- "ruby-graphviz" => ">= 0.a",
+ # for >= Ruby 2.3
+ "ruby-graphviz" => "1.2.4",
}
extend self