diff --git a/components/newlib/test/test_newlib.c b/components/newlib/test/test_newlib.c
index 517043d2db..69d31bfe60 100644
--- a/components/newlib/test/test_newlib.c
+++ b/components/newlib/test/test_newlib.c
@@ -141,7 +141,12 @@ TEST_CASE("check if ROM or Flash is used for functions", "[newlib]")
 #if defined(CONFIG_IDF_TARGET_ESP32) && !defined(CONFIG_SPIRAM)
     TEST_ASSERT(fn_in_rom(atoi));
     TEST_ASSERT(fn_in_rom(strtol));
+#elif defined(CONFIG_IDF_TARGET_ESP32S3) || defined(CONFIG_IDF_TARGET_ESP32C3)
+    /* S3 and C3 always use these from ROM */
+    TEST_ASSERT(fn_in_rom(atoi));
+    TEST_ASSERT(fn_in_rom(strtol));
 #else
+    /* S2 do not have these in ROM */
     TEST_ASSERT_FALSE(fn_in_rom(atoi));
     TEST_ASSERT_FALSE(fn_in_rom(strtol));
 #endif // defined(CONFIG_IDF_TARGET_ESP32) && !defined(CONFIG_SPIRAM)
diff --git a/components/newlib/test/test_shared_stack_printf.c b/components/newlib/test/test_shared_stack_printf.c
index 2c6368b3de..3cf1a44d80 100644
--- a/components/newlib/test/test_shared_stack_printf.c
+++ b/components/newlib/test/test_shared_stack_printf.c
@@ -26,6 +26,8 @@ void another_external_stack_function(void)
     shared_stack_sp = (StackType_t *)get_sp();
 }
 
+#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32C3)
+
 TEST_CASE("test printf using shared buffer stack", "[newlib]")
 {
     portSTACK_TYPE *shared_stack = malloc(SHARED_STACK_SIZE);
@@ -58,3 +60,5 @@ TEST_CASE("test printf using shared buffer stack", "[newlib]")
     vSemaphoreDelete(printf_lock);
     free(shared_stack);
 }
+
+#endif