diff --git a/builders/testdata/ruby/version_specified_gemfile_26/Gemfile b/builders/testdata/ruby/version_specified_gemfile_26/Gemfile
index 1728e1574..9bff672a9 100644
--- a/builders/testdata/ruby/version_specified_gemfile_26/Gemfile
+++ b/builders/testdata/ruby/version_specified_gemfile_26/Gemfile
@@ -13,5 +13,5 @@
 # limitations under the License.
 
 source "https://rubygems.org"
-gem "sinatra", "~> 2.0"
+gem "sinatra", "~> 4.0", ">= 4.0.0"
 ruby '~> 2.6.0'