diff --git a/packages/director-ruby-3.3/spec.lock b/packages/director-ruby-3.3/spec.lock
deleted file mode 100644
index b8d56a26747..00000000000
--- a/packages/director-ruby-3.3/spec.lock
+++ /dev/null
@@ -1,2 +0,0 @@
-name: director-ruby-3.3
-fingerprint: 4b5ea4a880c87a85cc2205db5eea924b8ec9a00ac6fefa22f2df5f263cb50b45
diff --git a/src/bosh-director/spec/unit/bosh/director/core/templates/source_erb_spec.rb b/src/bosh-director/spec/unit/bosh/director/core/templates/source_erb_spec.rb
index 43299f83222..ae3527da859 100644
--- a/src/bosh-director/spec/unit/bosh/director/core/templates/source_erb_spec.rb
+++ b/src/bosh-director/spec/unit/bosh/director/core/templates/source_erb_spec.rb
@@ -36,15 +36,14 @@ module Bosh::Director::Core::Templates
           allow(logger).to receive(:debug)
         end
 
-        # Ruby 3.3 uses `method_name'; Ruby 3.4+ uses 'method_name'
-        let(:original_error) { "undefined method [`|']no_method' for nil" }
+        let(:original_error) { "undefined method 'no_method' for nil" }
 
         let(:expected_message) do
-          /Error filling in template 'source-filename.erb' \(line 1: #{original_error}\)/
+          "Error filling in template 'source-filename.erb' (line 1: #{original_error})"
         end
 
         it 'logs the error and the new message with the original backtrace' do
-          expect(logger).to receive(:debug).with(/#<NoMethodError: #{original_error}>/)
+          expect(logger).to receive(:debug).with("#<NoMethodError: #{original_error}>")
           expect(logger).to receive(:debug) do |message|
             expect(message).to include(expected_message)
             expect(message).to include("fake-job-name/source-filename.erb:1:in 'get_binding'")