diff --git a/test/bin/committee_stub_test.rb b/test/bin/committee_stub_test.rb
index 9b61111b..d234497b 100644
--- a/test/bin/committee_stub_test.rb
+++ b/test/bin/committee_stub_test.rb
@@ -44,8 +44,6 @@
 
   def app
     options = {}
-    # TODO: delete when 5.0.0 released because default value changed
-    options[:parse_response_by_content_type] = false
 
     @bin.get_app(hyper_schema, options)
   end
diff --git a/test/middleware/base_test.rb b/test/middleware/base_test.rb
index 446848ee..11d48d00 100644
--- a/test/middleware/base_test.rb
+++ b/test/middleware/base_test.rb
@@ -117,9 +117,6 @@ def app
   private
 
   def new_rack_app(options = {})
-    # TODO: delete when 5.0.0 released because default value changed
-    options[:parse_response_by_content_type] = true if options[:parse_response_by_content_type] == nil
-
     Rack::Builder.new {
       use Committee::Middleware::RequestValidation, options
       run lambda { |_|
diff --git a/test/middleware/request_validation_open_api_3_test.rb b/test/middleware/request_validation_open_api_3_test.rb
index 942a44ea..b9a8b5cb 100644
--- a/test/middleware/request_validation_open_api_3_test.rb
+++ b/test/middleware/request_validation_open_api_3_test.rb
@@ -615,9 +615,6 @@ def new_rack_app(options = {})
   end
 
   def new_rack_app_with_lambda(check_lambda, options = {})
-    # TODO: delete when 5.0.0 released because default value changed
-    options[:parse_response_by_content_type] = true if options[:parse_response_by_content_type] == nil
-
     Rack::Builder.new {
       use Committee::Middleware::RequestValidation, options
       run check_lambda
diff --git a/test/middleware/request_validation_test.rb b/test/middleware/request_validation_test.rb
index 930647be..bd95cd77 100644
--- a/test/middleware/request_validation_test.rb
+++ b/test/middleware/request_validation_test.rb
@@ -505,9 +505,6 @@ def new_rack_app(options = {})
 
 
   def new_rack_app_with_lambda(check_lambda, options = {})
-    # TODO: delete when 5.0.0 released because default value changed
-    options[:parse_response_by_content_type] = true if options[:parse_response_by_content_type] == nil
-
     Rack::Builder.new {
       use Committee::Middleware::RequestValidation, options
       run check_lambda
diff --git a/test/middleware/response_validation_open_api_3_test.rb b/test/middleware/response_validation_open_api_3_test.rb
index b0f06967..1f18cca9 100644
--- a/test/middleware/response_validation_open_api_3_test.rb
+++ b/test/middleware/response_validation_open_api_3_test.rb
@@ -273,9 +273,6 @@ def app
   private
 
   def new_response_rack(response, headers = {}, options = {}, rack_options = {})
-    # TODO: delete when 5.0.0 released because default value changed
-    options[:parse_response_by_content_type] = true if options[:parse_response_by_content_type] == nil
-
     status = rack_options[:status] || 200
     content_type = rack_options[:content_type] || "application/json"
     headers = {
diff --git a/test/middleware/response_validation_test.rb b/test/middleware/response_validation_test.rb
index 17778f1e..3b0bde52 100644
--- a/test/middleware/response_validation_test.rb
+++ b/test/middleware/response_validation_test.rb
@@ -15,14 +15,6 @@ def app
     assert_equal 200, last_response.status
   end
 
-  # TODO: remove 5.0.0
-  it "passes through a valid response" do
-    # will show deprecated message
-    @app = new_rack_app(JSON.generate([ValidApp]), {}, schema: hyper_schema, strict: true)
-    get "/apps"
-    assert_equal 200, last_response.status
-  end
-
   it "doesn't call error_handler (has a arg) when response is valid" do
     called = false
     pr = ->(_e) { called = true }
@@ -173,9 +165,6 @@ def app
   private
 
   def new_rack_app(response, headers = {}, options = {})
-    # TODO: delete when 5.0.0 released because default value changed
-    options[:parse_response_by_content_type] = true if options[:parse_response_by_content_type] == nil
-
     headers = {
       "Content-Type" => "application/json"
     }.merge(headers)
diff --git a/test/middleware/stub_test.rb b/test/middleware/stub_test.rb
index eb68cf7e..1360381d 100644
--- a/test/middleware/stub_test.rb
+++ b/test/middleware/stub_test.rb
@@ -113,9 +113,6 @@ def new_rack_app(options = {})
     response = options.delete(:response)
     suppress = options.delete(:suppress)
 
-    # TODO: delete when 5.0.0 released because default value changed
-    options[:parse_response_by_content_type] = true if options[:parse_response_by_content_type] == nil
-
     Rack::Builder.new {
       use Committee::Middleware::Stub, options
       run lambda { |env|
diff --git a/test/schema_validator/hyper_schema/router_test.rb b/test/schema_validator/hyper_schema/router_test.rb
index 5bb167ab..41798516 100644
--- a/test/schema_validator/hyper_schema/router_test.rb
+++ b/test/schema_validator/hyper_schema/router_test.rb
@@ -69,8 +69,6 @@
   end
 
   def hyper_schema_router(options = {})
-    # TODO: delete when 5.0.0 released because default value changed
-    options[:parse_response_by_content_type] = true if options[:parse_response_by_content_type] == nil
     schema = Committee::Drivers::HyperSchema::Driver.new.parse(hyper_schema_data)
     validator_option = Committee::SchemaValidator::Option.new(options, schema, :hyper_schema)
 
@@ -78,8 +76,6 @@ def hyper_schema_router(options = {})
   end
 
   def open_api_2_router(options = {})
-    # TODO: delete when 5.0.0 released because default value changed
-    options[:parse_response_by_content_type] = true if options[:parse_response_by_content_type] == nil
     schema = Committee::Drivers::OpenAPI2::Driver.new.parse(open_api_2_data)
     validator_option = Committee::SchemaValidator::Option.new(options, schema, :hyper_schema)
 
diff --git a/test/schema_validator/open_api_3/operation_wrapper_test.rb b/test/schema_validator/open_api_3/operation_wrapper_test.rb
index 1b466850..0169b069 100644
--- a/test/schema_validator/open_api_3/operation_wrapper_test.rb
+++ b/test/schema_validator/open_api_3/operation_wrapper_test.rb
@@ -9,12 +9,7 @@
     before do
       @path = '/validate'
       @method = 'post'
-
-      # TODO: delete when 5.0.0 released because default value changed
-      options = {}
-      options[:parse_response_by_content_type] = true if options[:parse_response_by_content_type] == nil
-
-      @validator_option = Committee::SchemaValidator::Option.new(options, open_api_3_schema, :open_api_3)
+      @validator_option = Committee::SchemaValidator::Option.new({}, open_api_3_schema, :open_api_3)
     end
 
     def operation_object
diff --git a/test/schema_validator/open_api_3/request_validator_test.rb b/test/schema_validator/open_api_3/request_validator_test.rb
index 1df37e40..49cdd679 100644
--- a/test/schema_validator/open_api_3/request_validator_test.rb
+++ b/test/schema_validator/open_api_3/request_validator_test.rb
@@ -96,9 +96,6 @@ def app
     end    
 
     def new_rack_app(options = {})
-      # TODO: delete when 5.0.0 released because default value changed
-      options[:parse_response_by_content_type] = true if options[:parse_response_by_content_type] == nil
-
       Rack::Builder.new {
         use Committee::Middleware::RequestValidation, options
         run lambda { |_|
diff --git a/test/schema_validator/open_api_3/response_validator_test.rb b/test/schema_validator/open_api_3/response_validator_test.rb
index 84d96712..0c10c3b9 100644
--- a/test/schema_validator/open_api_3/response_validator_test.rb
+++ b/test/schema_validator/open_api_3/response_validator_test.rb
@@ -13,11 +13,7 @@
     @path = '/validate'
     @method = 'post'
 
-    # TODO: delete when 5.0.0 released because default value changed
-    options = {}
-    options[:parse_response_by_content_type] = true if options[:parse_response_by_content_type] == nil
-    
-    @validator_option = Committee::SchemaValidator::Option.new(options, open_api_3_schema, :open_api_3)
+    @validator_option = Committee::SchemaValidator::Option.new({}, open_api_3_schema, :open_api_3)
   end
 
   it "passes through a valid response" do
diff --git a/test/test/methods_new_version_test.rb b/test/test/methods_new_version_test.rb
index 0b470d2d..1f1ac49d 100644
--- a/test/test/methods_new_version_test.rb
+++ b/test/test/methods_new_version_test.rb
@@ -30,9 +30,6 @@ def response_data
     @committee_schema = nil
 
     @committee_options = {schema: hyper_schema}
-
-    # TODO: delete when 5.0.0 released because default value changed
-    @committee_options[:parse_response_by_content_type] = false
   end
 
   describe "#assert_schema_conform" do
diff --git a/test/test/methods_test.rb b/test/test/methods_test.rb
index 725ab592..a2755c10 100644
--- a/test/test/methods_test.rb
+++ b/test/test/methods_test.rb
@@ -29,9 +29,6 @@ def response_data
     @committee_router = nil
     @committee_schema = nil
     @committee_options = {}
-
-    # TODO: delete when 5.0.0 released because default value changed
-    @committee_options[:parse_response_by_content_type] = true
   end
 
   describe "Hyper-Schema" do