diff --git a/lib/uploadcare/client/conversion/base_conversion_client.rb b/lib/uploadcare/client/conversion/base_conversion_client.rb
index 868a0cf..4e0f666 100644
--- a/lib/uploadcare/client/conversion/base_conversion_client.rb
+++ b/lib/uploadcare/client/conversion/base_conversion_client.rb
@@ -37,9 +37,9 @@ def extract_result(response_body)
 
           parsed_body = JSON.parse(response_body, symbolize_names: true)
           errors = parsed_body[:error] || parsed_body[:problems]
-          return Dry::Monads::Failure(errors) unless errors.nil? || errors.empty?
+          return Dry::Monads::Result::Failure.call(errors) unless errors.nil? || errors.empty?
 
-          Dry::Monads::Success(parsed_body)
+          Dry::Monads::Result::Success.call(parsed_body)
         end
 
         # Prepares body for convert_many method
diff --git a/lib/uploadcare/client/rest_group_client.rb b/lib/uploadcare/client/rest_group_client.rb
index 396b1b4..c407a0f 100644
--- a/lib/uploadcare/client/rest_group_client.rb
+++ b/lib/uploadcare/client/rest_group_client.rb
@@ -17,7 +17,7 @@ def store(uuid)
           end
         end
 
-        Dry::Monads::Success(nil)
+        Dry::Monads::Result::Success.call(nil)
       end
 
       # Get a file group by its ID.
diff --git a/lib/uploadcare/client/uploader_client.rb b/lib/uploadcare/client/uploader_client.rb
index e7a7424..76f5e5d 100644
--- a/lib/uploadcare/client/uploader_client.rb
+++ b/lib/uploadcare/client/uploader_client.rb
@@ -42,7 +42,7 @@ def upload_from_url(url, options = {})
         uploaded_response = poll_upload_response(token_response.success[:token])
         return uploaded_response if uploaded_response.success[:status] == 'error'
 
-        Dry::Monads::Success(files: [uploaded_response.success])
+        Dry::Monads::Result::Success.call(files: [uploaded_response.success])
       end
 
       # Check upload status