diff --git a/rclcpp/include/rclcpp/utilities.hpp b/rclcpp/include/rclcpp/utilities.hpp
index 606636ed0a..6194aaaa69 100644
--- a/rclcpp/include/rclcpp/utilities.hpp
+++ b/rclcpp/include/rclcpp/utilities.hpp
@@ -154,6 +154,7 @@ ok(rclcpp::Context::SharedPtr context = nullptr);
  * \return true if the context is initialized, and false otherwise
  */
 RCLCPP_PUBLIC
+[[deprecated("use the function ok() instead, which has the same usage.")]]
 bool
 is_initialized(rclcpp::Context::SharedPtr context = nullptr);
 
diff --git a/rclcpp/test/test_init.cpp b/rclcpp/test/test_init.cpp
index 6e51ccd6c3..bee35f3992 100644
--- a/rclcpp/test/test_init.cpp
+++ b/rclcpp/test/test_init.cpp
@@ -17,6 +17,14 @@
 #include "rclcpp/exceptions.hpp"
 #include "rclcpp/utilities.hpp"
 
+#if !defined(_WIN32)
+# pragma GCC diagnostic push
+# pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#else  // !defined(_WIN32)
+# pragma warning(push)
+# pragma warning(disable: 4996)
+#endif
+
 TEST(TestInit, is_initialized) {
   EXPECT_FALSE(rclcpp::is_initialized());
 
@@ -50,3 +58,9 @@ TEST(TestInit, initialize_with_unknown_ros_args) {
 
   EXPECT_FALSE(rclcpp::is_initialized());
 }
+
+#if !defined(_WIN32)
+# pragma GCC diagnostic pop
+#else  // !defined(_WIN32)
+# pragma warning(pop)
+#endif
diff --git a/rclcpp/test/test_publisher.cpp b/rclcpp/test/test_publisher.cpp
index 6719197ce9..2fad5cd2ae 100644
--- a/rclcpp/test/test_publisher.cpp
+++ b/rclcpp/test/test_publisher.cpp
@@ -28,7 +28,7 @@ class TestPublisher : public ::testing::Test
 public:
   static void SetUpTestCase()
   {
-    if (!rclcpp::is_initialized()) {
+    if (!rclcpp::ok()) {
       rclcpp::init(0, nullptr);
     }
   }