diff --git a/common/values/custom_list_value_test.cc b/common/values/custom_list_value_test.cc
index 00d35fdbb..79c3f2419 100644
--- a/common/values/custom_list_value_test.cc
+++ b/common/values/custom_list_value_test.cc
@@ -87,11 +87,11 @@ class CustomListValueInterfaceTest final : public CustomListValueInterface {
     json_array.add_values()->set_bool_value(true);
     json_array.add_values()->set_number_value(1.0);
     absl::Cord serialized;
-    if (!json_array.SerializePartialToCord(&serialized)) {
+    if (!json_array.SerializePartialToString(&serialized)) {
       return absl::UnknownError(
           "failed to serialize google.protobuf.ListValue");
     }
-    if (!json->ParsePartialFromCord(serialized)) {
+    if (!json->ParsePartialFromString(serialized)) {
       return absl::UnknownError("failed to parse google.protobuf.ListValue");
     }
     return absl::OkStatus();
@@ -191,11 +191,11 @@ class CustomListValueTest : public common_internal::ValueTest<> {
           json_array.add_values()->set_bool_value(true);
           json_array.add_values()->set_number_value(1.0);
           absl::Cord serialized;
-          if (!json_array.SerializePartialToCord(&serialized)) {
+          if (!json_array.SerializePartialToString(&serialized)) {
             return absl::UnknownError(
                 "failed to serialize google.protobuf.ListValue");
           }
-          if (!json->ParsePartialFromCord(serialized)) {
+          if (!json->ParsePartialFromString(serialized)) {
             return absl::UnknownError(
                 "failed to parse google.protobuf.ListValue");
           }
diff --git a/common/values/custom_struct_value_test.cc b/common/values/custom_struct_value_test.cc
index 0f5ac39c5..32d867a4d 100644
--- a/common/values/custom_struct_value_test.cc
+++ b/common/values/custom_struct_value_test.cc
@@ -94,10 +94,10 @@ class CustomStructValueInterfaceTest final : public CustomStructValueInterface {
     (*json_object.mutable_fields())["foo"].set_bool_value(true);
     (*json_object.mutable_fields())["bar"].set_number_value(1.0);
     absl::Cord serialized;
-    if (!json_object.SerializePartialToCord(&serialized)) {
+    if (!json_object.SerializePartialToString(&serialized)) {
       return absl::UnknownError("failed to serialize google.protobuf.Struct");
     }
-    if (!json->ParsePartialFromCord(serialized)) {
+    if (!json->ParsePartialFromString(serialized)) {
       return absl::UnknownError("failed to parse google.protobuf.Struct");
     }
     return absl::OkStatus();
@@ -255,11 +255,11 @@ class CustomStructValueTest : public common_internal::ValueTest<> {
         (*json_object.mutable_fields())["foo"].set_bool_value(true);
         (*json_object.mutable_fields())["bar"].set_number_value(1.0);
         absl::Cord serialized;
-        if (!json_object.SerializePartialToCord(&serialized)) {
+        if (!json_object.SerializePartialToString(&serialized)) {
           return absl::UnknownError(
               "failed to serialize google.protobuf.Struct");
         }
-        if (!json->ParsePartialFromCord(serialized)) {
+        if (!json->ParsePartialFromString(serialized)) {
           return absl::UnknownError("failed to parse google.protobuf.Struct");
         }
         return absl::OkStatus();
diff --git a/common/values/parsed_json_list_value.cc b/common/values/parsed_json_list_value.cc
index 7f1fbfd06..9acd23e3f 100644
--- a/common/values/parsed_json_list_value.cc
+++ b/common/values/parsed_json_list_value.cc
@@ -105,11 +105,11 @@ absl::Status ParsedJsonListValue::ConvertToJson(
   } else {
     // Equivalent descriptors but not identical. Must serialize and deserialize.
     absl::Cord serialized;
-    if (!value_->SerializePartialToCord(&serialized)) {
+    if (!value_->SerializePartialToString(&serialized)) {
       return absl::UnknownError(
           absl::StrCat("failed to serialize message: ", value_->GetTypeName()));
     }
-    if (!message->ParsePartialFromCord(serialized)) {
+    if (!message->ParsePartialFromString(serialized)) {
       return absl::UnknownError(
           absl::StrCat("failed to parsed message: ", message->GetTypeName()));
     }
@@ -138,11 +138,11 @@ absl::Status ParsedJsonListValue::ConvertToJsonArray(
   } else {
     // Equivalent descriptors but not identical. Must serialize and deserialize.
     absl::Cord serialized;
-    if (!value_->SerializePartialToCord(&serialized)) {
+    if (!value_->SerializePartialToString(&serialized)) {
       return absl::UnknownError(
           absl::StrCat("failed to serialize message: ", value_->GetTypeName()));
     }
-    if (!json->ParsePartialFromCord(serialized)) {
+    if (!json->ParsePartialFromString(serialized)) {
       return absl::UnknownError(
           absl::StrCat("failed to parsed message: ", json->GetTypeName()));
     }
diff --git a/common/values/parsed_json_map_value.cc b/common/values/parsed_json_map_value.cc
index ea9b6a030..6072a0b21 100644
--- a/common/values/parsed_json_map_value.cc
+++ b/common/values/parsed_json_map_value.cc
@@ -108,11 +108,11 @@ absl::Status ParsedJsonMapValue::ConvertToJson(
   } else {
     // Equivalent descriptors but not identical. Must serialize and deserialize.
     absl::Cord serialized;
-    if (!value_->SerializePartialToCord(&serialized)) {
+    if (!value_->SerializePartialToString(&serialized)) {
       return absl::UnknownError(
           absl::StrCat("failed to serialize message: ", value_->GetTypeName()));
     }
-    if (!message->ParsePartialFromCord(serialized)) {
+    if (!message->ParsePartialFromString(serialized)) {
       return absl::UnknownError(
           absl::StrCat("failed to parsed message: ", message->GetTypeName()));
     }
@@ -141,11 +141,11 @@ absl::Status ParsedJsonMapValue::ConvertToJsonObject(
   } else {
     // Equivalent descriptors but not identical. Must serialize and deserialize.
     absl::Cord serialized;
-    if (!value_->SerializePartialToCord(&serialized)) {
+    if (!value_->SerializePartialToString(&serialized)) {
       return absl::UnknownError(
           absl::StrCat("failed to serialize message: ", value_->GetTypeName()));
     }
-    if (!json->ParsePartialFromCord(serialized)) {
+    if (!json->ParsePartialFromString(serialized)) {
       return absl::UnknownError(
           absl::StrCat("failed to parsed message: ", json->GetTypeName()));
     }
diff --git a/common/values/struct_value_builder.cc b/common/values/struct_value_builder.cc
index 803d755a8..359596267 100644
--- a/common/values/struct_value_builder.cc
+++ b/common/values/struct_value_builder.cc
@@ -67,11 +67,11 @@ absl::StatusOr<absl::optional<ErrorValue>> ProtoMessageCopyUsingSerialization(
     google::protobuf::MessageLite* to, const google::protobuf::MessageLite* from) {
   ABSL_DCHECK_EQ(to->GetTypeName(), from->GetTypeName());
   absl::Cord serialized;
-  if (!from->SerializePartialToCord(&serialized)) {
+  if (!from->SerializePartialToString(&serialized)) {
     return absl::UnknownError(
         absl::StrCat("failed to serialize `", from->GetTypeName(), "`"));
   }
-  if (!to->ParsePartialFromCord(serialized)) {
+  if (!to->ParsePartialFromString(serialized)) {
     return absl::UnknownError(
         absl::StrCat("failed to parse `", to->GetTypeName(), "`"));
   }