diff --git a/samples/net/gptp/src/main.c b/samples/net/gptp/src/main.c
index a111dea8d0d..d6edcb48537 100644
--- a/samples/net/gptp/src/main.c
+++ b/samples/net/gptp/src/main.c
@@ -134,7 +134,7 @@ static void gptp_phase_dis_cb(uint8_t *gm_identity,
 	if (memcmp(id, gm_identity, sizeof(id))) {
 		memcpy(id, gm_identity, sizeof(id));
 
-		LOG_DBG("GM %s last phase %d.%lld",
+		LOG_DBG("GM %s last phase %d.%" PRId64 "",
 			log_strdup(gptp_sprint_clock_id(gm_identity, output,
 							sizeof(output))),
 			last_gm_ph_change->high,
diff --git a/samples/net/sockets/websocket_client/src/main.c b/samples/net/sockets/websocket_client/src/main.c
index aa09be137fc..5b09e639934 100644
--- a/samples/net/sockets/websocket_client/src/main.c
+++ b/samples/net/sockets/websocket_client/src/main.c
@@ -218,7 +218,7 @@ static void recv_data_wso_api(int sock, size_t amount, uint8_t *buf,
 	if (remaining != 0 || total_read != amount ||
 	    /* Do not check the final \n at the end of the msg */
 	    memcmp(lorem_ipsum, buf, amount - 1) != 0) {
-		LOG_ERR("%s data recv failure %zd/%d bytes (remaining %lld)",
+		LOG_ERR("%s data recv failure %zd/%d bytes (remaining %" PRId64 ")",
 			proto, amount, total_read, remaining);
 		LOG_HEXDUMP_DBG(buf, total_read, "received ws buf");
 		LOG_HEXDUMP_DBG(lorem_ipsum, total_read, "sent ws buf");
diff --git a/samples/subsys/settings/src/main.c b/samples/subsys/settings/src/main.c
index a9bc385d9d4..78ec9c2b512 100644
--- a/samples/subsys/settings/src/main.c
+++ b/samples/subsys/settings/src/main.c
@@ -85,7 +85,7 @@ int alpha_handle_set(const char *name, size_t len, settings_read_cb read_cb,
 
 		if (!next) {
 			rc = read_cb(cb_arg, &length_val, sizeof(length_val));
-			printk("<alpha/length> = %lld\n", length_val);
+			printk("<alpha/length> = %" PRId64 "\n", length_val);
 			return 0;
 		}
 
@@ -318,7 +318,7 @@ static void example_direct_load_subtree(void)
 	rc = settings_load_subtree_direct("alpha/length", direct_loader,
 					  (void *)&dld);
 	if (rc == 0) {
-		printk("  direct.length = %lld\n", dld.length);
+		printk("  direct.length = %" PRId64 "\n", dld.length);
 		printk("  direct.length_1 = %d\n", dld.length_1);
 		printk("  direct.length_2 = %d\n", dld.length_2);
 	} else {
diff --git a/tests/kernel/early_sleep/src/main.c b/tests/kernel/early_sleep/src/main.c
index edd3b8517de..99e1435992b 100644
--- a/tests/kernel/early_sleep/src/main.c
+++ b/tests/kernel/early_sleep/src/main.c
@@ -102,7 +102,7 @@ static void test_early_sleep(void)
 	 */
 	k_thread_priority_set(k_current_get(), 0);
 
-	TC_PRINT("msec per tick: %lld.%03lld, ticks to sleep: %d\n",
+	TC_PRINT("msec per tick: %" PRId64 ".%03" PRId64 ", ticks to sleep: %d\n",
 			k_ticks_to_ms_floor64(1000) / 1000U,
 			k_ticks_to_ms_floor64(1000) % 1000,
 			TEST_TICKS_TO_SLEEP);
diff --git a/tests/kernel/sleep/src/usleep.c b/tests/kernel/sleep/src/usleep.c
index 735d92a304c..dfed6948a53 100644
--- a/tests/kernel/sleep/src/usleep.c
+++ b/tests/kernel/sleep/src/usleep.c
@@ -87,7 +87,7 @@ void test_usleep(void)
 		}
 	}
 
-	printk("elapsed_ms = %lld\n", elapsed_ms);
+	printk("elapsed_ms = %" PRId64 "\n", elapsed_ms);
 	zassert_true(elapsed_ms >= LOWER_BOUND_MS, "short sleep");
 	zassert_true(elapsed_ms <= UPPER_BOUND_MS, "overslept");
 }
diff --git a/tests/kernel/tickless/tickless/src/main.c b/tests/kernel/tickless/tickless/src/main.c
index 1c0d2d3413a..47ceeccdd8f 100644
--- a/tests/kernel/tickless/tickless/src/main.c
+++ b/tests/kernel/tickless/tickless/src/main.c
@@ -137,7 +137,7 @@ void ticklessTestThread(void)
 	printk("Calibrated time stamp period = 0x%x%x\n",
 	       (uint32_t)(cal_tsc >> 32), (uint32_t)(cal_tsc & 0xFFFFFFFFLL));
 #elif defined(CONFIG_ARCH_POSIX)
-	printk("Calibrated time stamp period = %llu\n", cal_tsc);
+	printk("Calibrated time stamp period = %" PRIu64 "\n", cal_tsc);
 #elif defined(CONFIG_ARM)
 	printk("Calibrated time stamp period = 0x%x\n", cal_tsc);
 #endif
@@ -184,8 +184,8 @@ void ticklessTestThread(void)
 	printk("Cal   time stamp: 0x%x%x\n",
 	       (uint32_t)(cal_tsc >> 32), (uint32_t)(cal_tsc & 0xFFFFFFFFLL));
 #elif defined(CONFIG_ARCH_POSIX)
-	printk("diff  time stamp: %llu\n", diff_tsc);
-	printk("Cal   time stamp: %llu\n", cal_tsc);
+	printk("diff  time stamp: %" PRIu64 "\n", diff_tsc);
+	printk("Cal   time stamp: %" PRIu64 "\n", cal_tsc);
 #elif defined(CONFIG_ARM)
 	printk("diff  time stamp: 0x%x\n", diff_tsc);
 	printk("Cal   time stamp: 0x%x\n", cal_tsc);
diff --git a/tests/kernel/tickless/tickless_concept/src/main.c b/tests/kernel/tickless/tickless_concept/src/main.c
index fd1e9fcb653..18755691960 100644
--- a/tests/kernel/tickless/tickless_concept/src/main.c
+++ b/tests/kernel/tickless/tickless_concept/src/main.c
@@ -50,7 +50,7 @@ static void thread_tslice(void *p1, void *p2, void *p3)
 {
 	int64_t t = k_uptime_delta(&elapsed_slice);
 
-	TC_PRINT("elapsed slice %lld, expected: <%lld, %lld>\n",
+	TC_PRINT("elapsed slice %" PRId64 ", expected: <%" PRId64 ", %" PRId64 ">\n",
 		t, SLICE_SIZE, SLICE_SIZE_LIMIT);
 
 	/**TESTPOINT: verify slicing scheduler behaves as expected*/