diff --git a/Gemfile b/Gemfile
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--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,3 @@
+source 'https://rubygems.org' do
+  gem "rake", "~> 13.0.0"
+end
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
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+++ b/Gemfile.lock
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+GEM
+  remote: https://rubygems.org/
+  specs:
+    rake (13.0.6)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  rake (~> 13.0.0)!
+
+BUNDLED WITH
+   1.17.2