diff --git a/tensorflow_federated/cc/core/impl/aggregation/core/BUILD b/tensorflow_federated/cc/core/impl/aggregation/core/BUILD
index 335fd73e3a..f168731955 100644
--- a/tensorflow_federated/cc/core/impl/aggregation/core/BUILD
+++ b/tensorflow_federated/cc/core/impl/aggregation/core/BUILD
@@ -82,6 +82,7 @@ cc_library(
         ":tensor_cc_proto",
         "//tensorflow_federated/cc/core/impl/aggregation/base",
         "@com_google_absl//absl/strings",
+        "@com_google_absl//absl/strings:string_view",
         "@com_google_absl//absl/types:span",
     ],
 )
diff --git a/tensorflow_federated/cc/core/impl/aggregation/tensorflow/BUILD b/tensorflow_federated/cc/core/impl/aggregation/tensorflow/BUILD
index d5b3eb12b4..9fdc5fadd7 100644
--- a/tensorflow_federated/cc/core/impl/aggregation/tensorflow/BUILD
+++ b/tensorflow_federated/cc/core/impl/aggregation/tensorflow/BUILD
@@ -29,6 +29,7 @@ cc_library(
         "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",
         "@com_google_absl//absl/strings",
+        "@com_google_absl//absl/strings:string_view",
         "@org_tensorflow//tensorflow/core:framework",
         "@org_tensorflow//tensorflow/core:protos_all_cc",
         "@org_tensorflow//tensorflow/core/platform:tstring",
@@ -87,6 +88,7 @@ cc_test(
         "//tensorflow_federated/cc/testing:oss_test_main",
         "//tensorflow_federated/cc/testing:status_matchers",
         "@com_google_absl//absl/strings",
+        "@com_google_absl//absl/strings:string_view",
     ],
 )
 
diff --git a/tensorflow_federated/cc/core/impl/aggregation/testing/BUILD b/tensorflow_federated/cc/core/impl/aggregation/testing/BUILD
index 7dc6a85d74..324986b3e8 100644
--- a/tensorflow_federated/cc/core/impl/aggregation/testing/BUILD
+++ b/tensorflow_federated/cc/core/impl/aggregation/testing/BUILD
@@ -34,6 +34,7 @@ cc_library(
         "@com_google_absl//absl/status:statusor",
         "@com_google_absl//absl/strings",
         "@com_google_absl//absl/strings:cord",
+        "@com_google_absl//absl/strings:string_view",
         "@org_tensorflow//tensorflow/c:checkpoint_reader",
         "@org_tensorflow//tensorflow/c:tf_status_headers",
         "@org_tensorflow//tensorflow/c:tf_status_helper",
diff --git a/tensorflow_federated/cc/testing/BUILD b/tensorflow_federated/cc/testing/BUILD
index 55c32c0e4d..aa37e73ce3 100644
--- a/tensorflow_federated/cc/testing/BUILD
+++ b/tensorflow_federated/cc/testing/BUILD
@@ -35,6 +35,7 @@ cc_library(
         "@com_google_absl//absl/memory",
         "@com_google_absl//absl/strings",
         "@com_google_absl//absl/strings:str_format",
+        "@com_google_absl//absl/strings:string_view",
         "@com_google_googletest//:gtest",
     ],
 )
@@ -49,6 +50,7 @@ cc_library(
         "@com_google_absl//absl/status",
         "@com_google_absl//absl/status:statusor",
         "@com_google_absl//absl/strings",
+        "@com_google_absl//absl/strings:string_view",
         "@com_google_googletest//:gtest",
     ],
 )
diff --git a/tensorflow_federated/cc/testing/protobuf_matchers.h b/tensorflow_federated/cc/testing/protobuf_matchers.h
index d4f29efa94..ae45575f06 100644
--- a/tensorflow_federated/cc/testing/protobuf_matchers.h
+++ b/tensorflow_federated/cc/testing/protobuf_matchers.h
@@ -39,10 +39,11 @@
 #include <memory>
 #include <ostream>
 #include <string>
-#include <string_view>
 #include <type_traits>
 #include <vector>
 
+#include "absl/strings/string_view.h"
+
 #include "google/protobuf/message.h"
 #include "google/protobuf/text_format.h"
 #include "google/protobuf/util/message_differencer.h"
@@ -253,7 +254,7 @@ class ProtoMatcher : public ProtoMatcherBase {
 // as a (text format) string.
 class ProtoStringMatcher : public ProtoMatcherBase {
  public:
-  explicit ProtoStringMatcher(std::string_view expected)
+  explicit ProtoStringMatcher(absl::string_view expected)
       : expected_(expected) {}
 
  private:
@@ -318,7 +319,7 @@ inline ::testing::PolymorphicMatcher<internal_proto::ProtoMatcher> EqualsProto(
   return ::testing::MakePolymorphicMatcher(internal_proto::ProtoMatcher(x));
 }
 inline ::testing::PolymorphicMatcher<internal_proto::ProtoStringMatcher>
-EqualsProto(std::string_view x) {
+EqualsProto(absl::string_view x) {
   return ::testing::MakePolymorphicMatcher(
       internal_proto::ProtoStringMatcher(x));
 }
diff --git a/tensorflow_federated/cc/testing/status_matchers.cc b/tensorflow_federated/cc/testing/status_matchers.cc
index ec8ab5de76..fcaed4e722 100644
--- a/tensorflow_federated/cc/testing/status_matchers.cc
+++ b/tensorflow_federated/cc/testing/status_matchers.cc
@@ -18,11 +18,11 @@ limitations under the License
 #include <cstdint>
 #include <ostream>
 #include <string>
-#include <string_view>
 
 #include "googletest/include/gtest/gtest.h"
 #include "absl/status/status.h"
 #include "absl/strings/str_cat.h"
+#include "absl/strings/string_view.h"
 
 namespace tensorflow_federated {
 namespace internal_status {
@@ -94,7 +94,7 @@ bool CanonicalStatusIsMatcherCommonImpl::MatchAndExplain(
   return true;
 }
 
-void AddFatalFailure(std::string_view expression, const char* file,
+void AddFatalFailure(absl::string_view expression, const char* file,
                      uint32_t line, absl::Status status) {
   GTEST_MESSAGE_AT_(
       file, line,
diff --git a/tensorflow_federated/cc/testing/status_matchers.h b/tensorflow_federated/cc/testing/status_matchers.h
index c20ca5e9d2..aae5060065 100644
--- a/tensorflow_federated/cc/testing/status_matchers.h
+++ b/tensorflow_federated/cc/testing/status_matchers.h
@@ -22,7 +22,6 @@ limitations under the License
 #include <optional>
 #include <ostream>
 #include <string>
-#include <string_view>
 #include <type_traits>
 #include <utility>
 
@@ -30,6 +29,7 @@ limitations under the License
 #include "googletest/include/gtest/gtest.h"
 #include "absl/status/status.h"
 #include "absl/status/statusor.h"
+#include "absl/strings/string_view.h"
 #include "include/grpcpp/support/status.h"
 
 namespace tensorflow_federated {
@@ -290,7 +290,7 @@ class IsOkMatcher {
   }
 };
 
-void AddFatalFailure(std::string_view expression, const char* file,
+void AddFatalFailure(absl::string_view expression, const char* file,
                      uint32_t line, absl::Status status);
 
 inline absl::Status GetStatus(absl::Status&& status) { return status; }