diff --git a/.gitignore b/.gitignore
index aa7e664a..37220a49 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,7 @@
 
 # Coverage directory used by simplycov
 coverage
+
+# Bundler
+vendor/bundle
+.bundle
diff --git a/lib/utils/bump.rb b/lib/utils/bump.rb
index e0dc13f7..9a85f849 100644
--- a/lib/utils/bump.rb
+++ b/lib/utils/bump.rb
@@ -86,10 +86,10 @@ def assign_pr_attributes!(pr_number)
   end
 
   def get_content_update(path)
-    head_branch_content = Content.new(config: @config, ref: @head_branch, path: path).content
-    updated_base_branch_content = update_file_contents(path, head_branch_content)
+    base_branch_content = Content.new(config: @config, ref: @base_branch, path: path).content
+    updated_base_branch_content = update_file_contents(path, base_branch_content)
 
-    if head_branch_content == updated_base_branch_content
+    if base_branch_content == updated_base_branch_content
       puts "::notice title=Nothing to update::The desired version bump is already present for: #{path}"
       return nil
     end
diff --git a/spec/lib/utils/bump_spec.rb b/spec/lib/utils/bump_spec.rb
index f7a9e782..d114e494 100644
--- a/spec/lib/utils/bump_spec.rb
+++ b/spec/lib/utils/bump_spec.rb
@@ -13,7 +13,6 @@
   let(:other_version_file_paths) { ['path/to/other/version/file'] }
   let(:other_version_patterns) { [] }
   let(:base_content) { instance_double(Content) }
-  let(:head_content) { instance_double(Content) }
   let(:commit) { instance_double(Commit) }
 
   before do
@@ -25,10 +24,6 @@
       config: config, ref: 'base_branch',
       path: anything
     ).and_return(base_content)
-    allow(Content).to receive(:new).with(
-      config: config, ref: 'head_branch',
-      path: anything
-    ).and_return(head_content)
 
     allow(client).to receive(:pull_request).with(
       'owner/repo',
@@ -61,7 +56,6 @@
 
   describe '#bump_everything' do
     it 'bumps the version and commits the changes' do
-      allow(head_content).to receive(:content).and_return('version: 1.0.0')
       allow(base_content).to receive(:content).and_return('version: 1.0.0')
 
       bump = Bump.new(config, 'patch')
@@ -75,25 +69,8 @@
       bump.bump_everything
     end
 
-    it 'skips updating if the desired version bump is already present' do
-      allow(head_content).to receive(:content).and_return('version: 1.0.1')
-      allow(base_content).to receive(:content).and_return('version: 1.0.0')
-
-      bump = Bump.new(config, 'patch')
-      expect(commit).not_to receive(:multiple_files)
-      expect do
-        bump.bump_everything
-      end.to output(
-        "::notice title=Nothing to update::The desired version bump is already present for: " \
-        "#{other_version_file_paths[0]}\n" \
-        "::notice title=Nothing to update::The desired version bump is already present for: " \
-        "#{version_file_path}\n"
-      ).to_stdout
-    end
-
     it 'retains modified version file content' do
-      allow(head_content).to receive(:content).and_return('version: 1.0.0 extra stuff here')
-      allow(base_content).to receive(:content).and_return('version: 1.0.0')
+      allow(base_content).to receive(:content).and_return('version: 1.0.0 extra stuff here')
 
       bump = Bump.new(config, 'patch')
       expect(commit).to receive(:multiple_files).with(
@@ -110,7 +87,6 @@
     end
 
     it 'handles python underscored version format' do
-      allow(head_content).to receive(:content).and_return('__version__ = "1.0.0"')
       allow(base_content).to receive(:content).and_return('__version__ = "1.0.0"')
 
       bump = Bump.new(config, 'patch')