diff --git a/test/src/test_server_rpc_17.cpp b/test/src/test_server_rpc_17.cpp
index d0b19208..094d2e52 100644
--- a/test/src/test_server_rpc_17.cpp
+++ b/test/src/test_server_rpc_17.cpp
@@ -518,7 +518,7 @@ TEST_CASE_FIXTURE(ServerRPCTest<test::UnaryServerRPC>, "Unary ServerRPC with pro
                 test::ArenaRequestMessageFactory& factory)
             {
                 CHECK_EQ(42, request.integer());
-                CHECK_EQ(&factory.arena, request.GetArena());
+                CHECK(test::has_arena(request, factory.arena));
                 rpc.finish({}, grpc::Status::OK, yield);
                 CHECK_FALSE(factory.is_destroy_invoked);
             }},
@@ -716,7 +716,7 @@ TEST_CASE_FIXTURE(ServerRPCTest<test::UnaryServerRPC>, "Unary ServerRPCPtr with
             {
                 CHECK_EQ(42, request.integer());
                 CHECK_EQ(&ptr.request(), &request);
-                CHECK_EQ(&factory.arena, request.GetArena());
+                CHECK(test::has_arena(request, factory.arena));
                 auto& rpc = *ptr;
                 rpc.finish({}, grpc::Status::OK,
                            [ptr = std::move(ptr)](bool ok)
diff --git a/test/src/test_unifex_20.cpp b/test/src/test_unifex_20.cpp
index 28e87767..a5708a6d 100644
--- a/test/src/test_unifex_20.cpp
+++ b/test/src/test_unifex_20.cpp
@@ -18,6 +18,7 @@
 #include "utils/doctest.hpp"
 #include "utils/exception.hpp"
 #include "utils/execution_test.hpp"
+#include "utils/protobuf.hpp"
 #include "utils/requestMessageFactory.hpp"
 #include "utils/server_rpc.hpp"
 
@@ -161,7 +162,7 @@ TEST_CASE_FIXTURE(test::ExecutionRpcHandlerTest, "unifex rpc_handler unary with
             [&](test::UnaryServerRPC& rpc, auto& request, test::ArenaRequestMessageFactory& factory)
             {
                 CHECK_EQ(42, request.integer());
-                CHECK_EQ(&factory.arena, request.GetArena());
+                CHECK(test::has_arena(request, factory.arena));
                 return handle_unary_request_sender(rpc, request);
             }});
     run(make_client_unary_request_sender(test::five_seconds_from_now(),
diff --git a/test/utils/utils/protobuf.hpp b/test/utils/utils/protobuf.hpp
index 91cb7f2f..6b1023c5 100644
--- a/test/utils/utils/protobuf.hpp
+++ b/test/utils/utils/protobuf.hpp
@@ -16,6 +16,8 @@
 #define AGRPC_UTILS_PROTOBUF_HPP
 
 #include <doctest/doctest.h>
+#include <google/protobuf/arena.h>
+#include <google/protobuf/stubs/common.h>
 #include <grpcpp/impl/codegen/proto_utils.h>
 #include <grpcpp/support/proto_buffer_reader.h>
 #include <grpcpp/support/proto_buffer_writer.h>
@@ -40,6 +42,15 @@ grpc::ByteBuffer message_to_grpc_buffer(const Message& message)
     CHECK_MESSAGE(status.ok(), status.error_message());
     return buffer;
 }
+
+inline bool has_arena(const google::protobuf::MessageLite& message, const google::protobuf::Arena& arena)
+{
+#if GOOGLE_PROTOBUF_VERSION < 4000000
+    return true;
+#else
+    return message.GetArena() == &arena;
+#endif
+}
 }
 
 #endif  // AGRPC_UTILS_PROTOBUF_HPP