diff --git a/conformance/failure_list_csharp.txt b/conformance/failure_list_csharp.txt
index dfafbeccf8..84f46fabe7 100644
--- a/conformance/failure_list_csharp.txt
+++ b/conformance/failure_list_csharp.txt
@@ -1,6 +1,2 @@
 Recommended.JsonInput.FieldNameWithDoubleUnderscores.JsonOutput
 Required.JsonInput.FieldNameInSnakeCase.JsonOutput
-Required.JsonInput.FieldNameWithMixedCases.JsonOutput
-Required.JsonInput.FieldNameWithMixedCases.ProtobufOutput
-Required.JsonInput.FieldNameWithMixedCases.Validator
-Required.JsonInput.OriginalProtoFieldName.JsonOutput