diff --git a/examples/conversions_chaining.rb b/examples/conversions_chaining.rb
index 857de79..12950f1 100644
--- a/examples/conversions_chaining.rb
+++ b/examples/conversions_chaining.rb
@@ -14,7 +14,7 @@
 
 puts "Conversions done. Cost: #{jpg_result.conversion_cost}. Total files created: #{jpg_result.files.count}"
 
-zip_result = ConvertApi.convert('zip', {Files: jpg_result.files})
+zip_result = ConvertApi.convert('zip', {Files: jpg_result.files}, from_format: 'file')
 
 puts "Conversions done. Cost: #{zip_result.conversion_cost}. Total files created: #{zip_result.files.count}"
 
diff --git a/examples/convert_url_to_pdf.rb b/examples/convert_url_to_pdf.rb
index 880886b..b401bcb 100644
--- a/examples/convert_url_to_pdf.rb
+++ b/examples/convert_url_to_pdf.rb
@@ -6,7 +6,7 @@
 end
 
 # Example of converting Web Page URL to PDF file
-# https://www.convertapi.com/web-to-pdf
+# https://www.convertapi.com/html-to-pdf
 
 result = ConvertApi.convert(
   'pdf',
@@ -14,7 +14,7 @@
     Url: 'https://en.wikipedia.org/wiki/Data_conversion',
     FileName: 'web-example'
   },
-  from_format: 'web',
+  from_format: 'html',
   conversion_timeout: 180,
 )