diff --git a/samples/net/lwm2m_client/overlay-data-cache.conf b/samples/net/lwm2m_client/overlay-data-cache.conf
index e7c410f51c065..523b23519addb 100644
--- a/samples/net/lwm2m_client/overlay-data-cache.conf
+++ b/samples/net/lwm2m_client/overlay-data-cache.conf
@@ -1,5 +1,5 @@
 CONFIG_ZCBOR=y
 CONFIG_ZCBOR_CANONICAL=y
 CONFIG_LWM2M_RW_SENML_CBOR_SUPPORT=y
-CONFIG_POSIX_TIMERS=y
+CONFIG_XSI_SINGLE_PROCESS=y
 CONFIG_LWM2M_RESOURCE_DATA_CACHE_SUPPORT=y
diff --git a/subsys/net/lib/lwm2m/Kconfig b/subsys/net/lib/lwm2m/Kconfig
index 206b6d4c38037..9872e2acd915c 100644
--- a/subsys/net/lib/lwm2m/Kconfig
+++ b/subsys/net/lib/lwm2m/Kconfig
@@ -227,7 +227,7 @@ config LWM2M_RD_CLIENT_MAX_RETRIES
 config LWM2M_RESOURCE_DATA_CACHE_SUPPORT
 	bool "Resource Time series data cache support"
 	depends on (LWM2M_RW_SENML_JSON_SUPPORT || LWM2M_RW_SENML_CBOR_SUPPORT)
-	depends on (POSIX_TIMERS && RING_BUFFER)
+	depends on (XSI_SINGLE_PROCESS && RING_BUFFER)
 	help
 	  Enable time series data storage.
 	  Requires time() to provide current Unix timestamp.