diff --git a/lib/pact_broker/api/resources/base_resource.rb b/lib/pact_broker/api/resources/base_resource.rb
index 65e3c5635..135e7ecd8 100644
--- a/lib/pact_broker/api/resources/base_resource.rb
+++ b/lib/pact_broker/api/resources/base_resource.rb
@@ -96,12 +96,12 @@ def pact_params
         end
 
         def set_json_error_message message
-          response.headers['Content-Type'] = 'application/json;charset=utf-8'
+          response.headers['Content-Type'] = 'application/hal+json;charset=utf-8'
           response.body = {error: message}.to_json
         end
 
         def set_json_validation_error_messages errors
-          response.headers['Content-Type'] = 'application/json;charset=utf-8'
+          response.headers['Content-Type'] = 'application/hal+json;charset=utf-8'
           response.body = {errors: errors}.to_json
         end
 
@@ -128,7 +128,7 @@ def invalid_json?
           rescue StandardError => e
             logger.error "Error parsing JSON #{e} - #{request_body}"
             set_json_error_message "Error parsing JSON - #{e.message}"
-            response.headers['Content-Type'] = 'application/json;charset=utf-8'
+            response.headers['Content-Type'] = 'application/hal+json;charset=utf-8'
             true
           end
         end
diff --git a/lib/pact_broker/api/resources/pact_webhooks.rb b/lib/pact_broker/api/resources/pact_webhooks.rb
index c861b27a4..d31ee272e 100644
--- a/lib/pact_broker/api/resources/pact_webhooks.rb
+++ b/lib/pact_broker/api/resources/pact_webhooks.rb
@@ -38,7 +38,7 @@ def validation_errors? webhook
           errors = webhook_service.errors(webhook)
 
           unless errors.empty?
-            response.headers['Content-Type'] = 'application/json;charset=utf-8'
+            response.headers['Content-Type'] = 'application/hal+json;charset=utf-8'
             response.body = { errors: errors.messages }.to_json
           end
 
diff --git a/spec/features/create_webhook_spec.rb b/spec/features/create_webhook_spec.rb
index 37325a8f1..0a06db136 100644
--- a/spec/features/create_webhook_spec.rb
+++ b/spec/features/create_webhook_spec.rb
@@ -24,7 +24,7 @@
 
     it "returns a JSON content type" do
       subject
-      expect(last_response.headers['Content-Type']).to eq 'application/json;charset=utf-8'
+      expect(last_response.headers['Content-Type']).to eq 'application/hal+json;charset=utf-8'
     end
 
     it "returns the validation errors" do
diff --git a/spec/lib/pact_broker/api/resources/pact_spec.rb b/spec/lib/pact_broker/api/resources/pact_spec.rb
index 3336494f2..87cc9fc34 100644
--- a/spec/lib/pact_broker/api/resources/pact_spec.rb
+++ b/spec/lib/pact_broker/api/resources/pact_spec.rb
@@ -76,7 +76,7 @@ module Resources
           end
 
           it "returns a JSON content type" do
-            expect(response.headers['Content-Type']).to eq "application/json;charset=utf-8"
+            expect(response.headers['Content-Type']).to eq "application/hal+json;charset=utf-8"
           end
 
           it "returns an error message" do
diff --git a/spec/lib/pact_broker/api/resources/pact_webhooks_spec.rb b/spec/lib/pact_broker/api/resources/pact_webhooks_spec.rb
index 68b58ade0..9c2953986 100644
--- a/spec/lib/pact_broker/api/resources/pact_webhooks_spec.rb
+++ b/spec/lib/pact_broker/api/resources/pact_webhooks_spec.rb
@@ -93,7 +93,7 @@ module Resources
 
           it "returns a JSON content type" do
             subject
-            expect(last_response.headers['Content-Type']).to eq 'application/json;charset=utf-8'
+            expect(last_response.headers['Content-Type']).to eq 'application/hal+json;charset=utf-8'
           end
 
           it "returns an error message" do
@@ -111,7 +111,7 @@ module Resources
 
           it "returns a JSON content type" do
             subject
-            expect(last_response.headers['Content-Type']).to eq 'application/json;charset=utf-8'
+            expect(last_response.headers['Content-Type']).to eq 'application/hal+json;charset=utf-8'
           end
 
           it "returns an error message" do
@@ -132,7 +132,7 @@ module Resources
 
           it "returns a JSON content type" do
             subject
-            expect(last_response.headers['Content-Type']).to eq 'application/json;charset=utf-8'
+            expect(last_response.headers['Content-Type']).to eq 'application/hal+json;charset=utf-8'
           end
 
           it "returns the validation errors" do
diff --git a/spec/support/shared_examples_for_responses.rb b/spec/support/shared_examples_for_responses.rb
index b98912b98..6907a6ca6 100644
--- a/spec/support/shared_examples_for_responses.rb
+++ b/spec/support/shared_examples_for_responses.rb
@@ -24,14 +24,14 @@
 
 RSpec::Matchers.define :be_a_json_response do
   match do | actual |
-    expect(actual.headers['Content-Type']).to eq 'application/json;charset=utf-8'
+    expect(actual.headers['Content-Type']).to eq 'application/hal+json;charset=utf-8'
   end
 end
 
 RSpec::Matchers.define :be_a_json_error_response do | message |
   match do | actual |
     expect(actual.status).to be 400
-    expect(actual.headers['Content-Type']).to eq 'application/json;charset=utf-8'
+    expect(actual.headers['Content-Type']).to eq 'application/hal+json;charset=utf-8'
     expect(actual.body).to include message
   end
 end