Use newest `ruby-graphviz` for rubies that support it

It should fix the current ruby-head build.

2 files changed, 2 insertions, 2 deletions

diff --git a/spec/commands/viz_spec.rb b/spec/commands/viz_spec.rb
index e21d52feed..fbfd3fcc09 100644
--- a/spec/commands/viz_spec.rb
+++ b/spec/commands/viz_spec.rb
@@ -2,7 +2,7 @@
 
 RSpec.describe "bundle viz", :bundler => "< 3", :if => Bundler.which("dot") do
   let(:ruby_graphviz) do
-    "ruby-graphviz --version 1.2.4"
+    "ruby-graphviz --version #{RUBY_VERSION >= "2.4" ? "1.2.5" : "1.2.4"}"
   end
 
   before do
diff --git a/spec/other/major_deprecation_spec.rb b/spec/other/major_deprecation_spec.rb
index 4bf07e7844..a0ea2d0c4b 100644
--- a/spec/other/major_deprecation_spec.rb
+++ b/spec/other/major_deprecation_spec.rb
@@ -543,7 +543,7 @@ The :gist git source is deprecated, and will be removed in the future. Add this
 
   context "bundle viz" do
     let(:ruby_graphviz) do
-      "ruby-graphviz --version 1.2.4"
+      "ruby-graphviz --version #{RUBY_VERSION >= "2.4" ? "1.2.5" : "1.2.4"}"
     end
 
     before do