diff --git a/bundler/spec/dependabot/bundler/file_parser/gemfile_declaration_finder_spec.rb b/bundler/spec/dependabot/bundler/file_parser/gemfile_declaration_finder_spec.rb
index d6676432fa..4b3b22aff3 100644
--- a/bundler/spec/dependabot/bundler/file_parser/gemfile_declaration_finder_spec.rb
+++ b/bundler/spec/dependabot/bundler/file_parser/gemfile_declaration_finder_spec.rb
@@ -21,10 +21,7 @@
   let(:dependency_name) { "business" }
   let(:dependency_requirement_sting) { "~> 1" }
 
-  let(:gemfile) do
-    Dependabot::DependencyFile.new(content: gemfile_body, name: "Gemfile")
-  end
-  let(:gemfile_body) { fixture("ruby", "gemfiles", "Gemfile") }
+  let(:gemfile) { bundler_project_dependency_file("gemfile", filename: "Gemfile") }
 
   describe "#gemfile_includes_dependency?" do
     subject(:gemfile_includes_dependency) do
@@ -37,7 +34,9 @@
     end
 
     context "when the file is just comments" do
-      let(:gemfile_body) { "#Lol this is just a comment" }
+      let(:gemfile) do
+        Dependabot::DependencyFile.new(content: "#Lol this is just a comment", name: "Gemfile")
+      end
       it { is_expected.to eq(false) }
     end
 
@@ -46,16 +45,14 @@
       it { is_expected.to eq(true) }
 
       context "but it's in a source block" do
-        let(:gemfile_body) { fixture("ruby", "gemfiles", "sidekiq_pro") }
+        let(:gemfile) { bundler_project_dependency_file("sidekiq_pro", filename: "Gemfile") }
         let(:dependency_name) { "sidekiq-pro" }
 
         it { is_expected.to eq(true) }
       end
 
       context "but it's in a group block" do
-        let(:gemfile_body) do
-          fixture("ruby", "gemfiles", "development_dependencies")
-        end
+        let(:gemfile) { bundler_project_dependency_file("development_dependencies", filename: "Gemfile") }
         let(:dependency_name) { "business" }
 
         it { is_expected.to eq(true) }
@@ -72,7 +69,10 @@
     end
 
     context "when the file is just comments" do
-      let(:gemfile_body) { "#Lol this is just a comment" }
+      let(:gemfile) do
+        Dependabot::DependencyFile.new(content: "#Lol this is just a comment", name: "Gemfile")
+      end
+
       it { is_expected.to be_nil }
     end
 
@@ -82,9 +82,7 @@
       it { is_expected.to eq("~> 1.4.0") }
 
       context "but doesn't specify a requirement" do
-        let(:gemfile_body) do
-          fixture("ruby", "gemfiles", "version_not_specified")
-        end
+        let(:gemfile) { bundler_project_dependency_file("version_not_specified", filename: "Gemfile") }
         let(:dependency_requirement_sting) { nil }
 
         # NOTE: It would be equally valid to return `nil` here
@@ -102,9 +100,7 @@
       end
 
       context "but it's using a version that would be transformed" do
-        let(:gemfile_body) do
-          fixture("ruby", "gemfiles", "prerelease_with_dash")
-        end
+        let(:gemfile) { bundler_project_dependency_file("prerelease_with_dash_gemfile", filename: "Gemfile") }
         let(:dependency_name) { "business" }
         let(:dependency_requirement_sting) { "~> 1.4.0.pre.rc1" }
 
@@ -117,7 +113,7 @@
       end
 
       context "but it's using a function version" do
-        let(:gemfile_body) { fixture("ruby", "gemfiles", "function_version") }
+        let(:gemfile) { bundler_project_dependency_file("function_version_gemfile", filename: "Gemfile") }
         let(:dependency_name) { "business" }
         let(:dependency_requirement_sting) { "~> 1.0.0" }
 
diff --git a/bundler/spec/spec_helper.rb b/bundler/spec/spec_helper.rb
index 22f2449f24..2f786d4657 100644
--- a/bundler/spec/spec_helper.rb
+++ b/bundler/spec/spec_helper.rb
@@ -19,6 +19,14 @@ def bundler_project_dependency_files(project)
   project_dependency_files(File.join("bundler1", project))
 end
 
+def bundler_project_dependency_file(project, filename:)
+  dependency_file = bundler_project_dependency_files(project).find { |file| file.name == filename }
+
+  raise "Dependency File '#{filename} does not exist for project '#{project}'" unless dependency_file
+
+  dependency_file
+end
+
 RSpec.configure do |config|
   config.around do |example|
     if bundler_2_available? && example.metadata[:bundler_v1_only]