diff --git a/spec/fixtures/vcr_cassettes/feeds/submit_feed/invalid_request.yml b/spec/fixtures/vcr_cassettes/feeds/submit_feed/invalid_request.yml
index e823255..741e8f6 100644
--- a/spec/fixtures/vcr_cassettes/feeds/submit_feed/invalid_request.yml
+++ b/spec/fixtures/vcr_cassettes/feeds/submit_feed/invalid_request.yml
@@ -9,6 +9,8 @@ http_interactions:
     headers:
       Content-Md5:
       - onDs6N53e7eIV6Clv1x4ag==
+      Content-Type:
+      - text/xml
   response:
     status:
       code: 400
@@ -58,6 +60,8 @@ http_interactions:
     headers:
       Content-Md5:
       - onDs6N53e7eIV6Clv1x4ag==
+      Content-Type:
+      - text/xml
   response:
     status:
       code: 400
@@ -107,6 +111,8 @@ http_interactions:
     headers:
       Content-Md5:
       - onDs6N53e7eIV6Clv1x4ag==
+      Content-Type:
+      - text/xml
   response:
     status:
       code: 400
@@ -156,6 +162,8 @@ http_interactions:
     headers:
       Content-Md5:
       - onDs6N53e7eIV6Clv1x4ag==
+      Content-Type:
+      - text/xml
   response:
     status:
       code: 403
diff --git a/spec/fixtures/vcr_cassettes/feeds/submit_feed/text_request.yml b/spec/fixtures/vcr_cassettes/feeds/submit_feed/text_request.yml
index de777c9..04d01c0 100644
--- a/spec/fixtures/vcr_cassettes/feeds/submit_feed/text_request.yml
+++ b/spec/fixtures/vcr_cassettes/feeds/submit_feed/text_request.yml
@@ -9,6 +9,8 @@ http_interactions:
     headers:
       Content-Md5:
       - onDs6N53e7eIV6Clv1x4ag==
+      Content-Type:
+      - text/xml
   response:
     status:
       code: 200
@@ -56,6 +58,8 @@ http_interactions:
     headers:
       Content-Md5:
       - onDs6N53e7eIV6Clv1x4ag==
+      Content-Type:
+      - text/xml
   response:
     status:
       code: 200
@@ -103,6 +107,8 @@ http_interactions:
     headers:
       Content-Md5:
       - onDs6N53e7eIV6Clv1x4ag==
+      Content-Type:
+      - text/xml
   response:
     status:
       code: 200
@@ -150,6 +156,8 @@ http_interactions:
     headers:
       Content-Md5:
       - onDs6N53e7eIV6Clv1x4ag==
+      Content-Type:
+      - text/xml
   response:
     status:
       code: 403
diff --git a/spec/fixtures/vcr_cassettes/feeds/submit_feed/xml_request.yml b/spec/fixtures/vcr_cassettes/feeds/submit_feed/xml_request.yml
index c811d23..1766614 100644
--- a/spec/fixtures/vcr_cassettes/feeds/submit_feed/xml_request.yml
+++ b/spec/fixtures/vcr_cassettes/feeds/submit_feed/xml_request.yml
@@ -18,6 +18,8 @@ http_interactions:
     headers:
       Content-Md5:
       - 6N4Mkq/8Ic5aJcb9BwEniw==
+      Content-Type:
+      - text/xml
   response:
     status:
       code: 200
@@ -74,6 +76,8 @@ http_interactions:
     headers:
       Content-Md5:
       - PX5rQkl65fhsCdPtOZ+zQg==
+      Content-Type:
+      - text/xml
   response:
     status:
       code: 200
@@ -130,6 +134,8 @@ http_interactions:
     headers:
       Content-Md5:
       - 8jloAkK/xNR6l8RkqR5C3Q==
+      Content-Type:
+      - text/xml
   response:
     status:
       code: 200
@@ -186,6 +192,8 @@ http_interactions:
     headers:
       Content-Md5:
       - 6XOh/zz8u3E+t4Dfq1OWGw==
+      Content-Type:
+      - text/xml
   response:
     status:
       code: 403
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index d676e2a..c5a30eb 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -8,10 +8,13 @@
   config.cassette_library_dir = 'spec/fixtures/vcr_cassettes'
   config.hook_into :webmock # or :fakeweb
   config.configure_rspec_metadata!
-  config.default_cassette_options = { match_requests_on: [:method, :host] }
+  config.default_cassette_options = { match_requests_on: [:method, :host, :content_type] }
   config.filter_sensitive_data('DUMMY_AWS_ACCESS_KEY') { ENV['AWS_ACCESS_KEY'] }
   config.filter_sensitive_data('DUMMY_AWS_SECRET_KEY') { ENV['AWS_SECRET_KEY'] }
   config.filter_sensitive_data('DUMMY_AWS_SELLER_ID')  { ENV['AWS_SELLER_ID']  }
+  config.register_request_matcher(:content_type) do |request1, request2|
+    request1.headers['Content-Type'] == request2.headers['Content-Type']
+  end
 end
 
 RSpec.configure(&:raise_errors_for_deprecations!)