diff --git a/applications/asset_tracker_v2/configuration/memfault/memfault_platform_config.h b/applications/asset_tracker_v2/configuration/memfault/memfault_platform_config.h
index be6c32d040e5..9c0bf8094894 100644
--- a/applications/asset_tracker_v2/configuration/memfault/memfault_platform_config.h
+++ b/applications/asset_tracker_v2/configuration/memfault/memfault_platform_config.h
@@ -7,7 +7,5 @@
  */
 
 #if defined(CONFIG_DEBUG_MODULE)
- /* Prepare captured metric data for upload to Memfault cloud every configured interval. */
-#define MEMFAULT_METRICS_HEARTBEAT_INTERVAL_SECS CONFIG_DEBUG_MODULE_MEMFAULT_HEARTBEAT_INTERVAL_SEC
 #define MEMFAULT_DATA_EXPORT_CHUNK_MAX_LEN CONFIG_DEBUG_MODULE_MEMFAULT_CHUNK_SIZE_MAX
 #endif /* defined(CONFIG_DEBUG_MODULE) */
diff --git a/applications/asset_tracker_v2/doc/debug_module.rst b/applications/asset_tracker_v2/doc/debug_module.rst
index 7f9b3895e58b..cd608eb582fc 100644
--- a/applications/asset_tracker_v2/doc/debug_module.rst
+++ b/applications/asset_tracker_v2/doc/debug_module.rst
@@ -52,11 +52,6 @@ Configuration options
 CONFIG_DEBUG_MODULE_MEMFAULT_USE_EXTERNAL_TRANSPORT - Configuration for transfer of Memfault data
    This option, if enabled, makes the debug module trigger events carrying Memfault data. This data can be routed through an external transport to Memfault cloud, for example, through AWS IoT, Azure IoT Hub, or `nRF Cloud`_.
 
-.. _CONFIG_DEBUG_MODULE_MEMFAULT_HEARTBEAT_INTERVAL_SEC:
-
-CONFIG_DEBUG_MODULE_MEMFAULT_HEARTBEAT_INTERVAL_SEC - Configuration for nRF Connect SDK Memfault metrics tracking interval
-   This option sets the time interval for tracking |NCS| Memfault metrics.
-
 .. _CONFIG_DEBUG_MODULE_MEMFAULT_CHUNK_SIZE_MAX:
 
 CONFIG_DEBUG_MODULE_MEMFAULT_CHUNK_SIZE_MAX - Configuration for maximum size of transmitted packets
diff --git a/applications/asset_tracker_v2/overlay-memfault.conf b/applications/asset_tracker_v2/overlay-memfault.conf
index 961e725de2f4..c22ad2db9080 100644
--- a/applications/asset_tracker_v2/overlay-memfault.conf
+++ b/applications/asset_tracker_v2/overlay-memfault.conf
@@ -12,6 +12,10 @@ CONFIG_MEMFAULT_NCS_STACK_METRICS=y
 CONFIG_MEMFAULT_NCS_LOCATION_METRICS=y
 CONFIG_MEMFAULT_LOGGING_ENABLE=y
 
+# Configuration that sets how often Memfault captures and prepares data that will be sent
+# to Memfault cloud. Reduced from the default 1 hour interval here for demonstration.
+CONFIG_MEMFAULT_METRICS_HEARTBEAT_INTERVAL_SECS=1800
+
 CONFIG_MEMFAULT_ROOT_CERT_STORAGE_NRF9160_MODEM=y
 # There is a race with the credential provisioning and starting LTE network search if automatic
 # provisioning is used. Therefore it's disabled, and the app controls it.
diff --git a/applications/asset_tracker_v2/src/modules/Kconfig.debug_module b/applications/asset_tracker_v2/src/modules/Kconfig.debug_module
index ff3b093ad062..124b75ab0ff7 100644
--- a/applications/asset_tracker_v2/src/modules/Kconfig.debug_module
+++ b/applications/asset_tracker_v2/src/modules/Kconfig.debug_module
@@ -33,16 +33,6 @@ config DEBUG_MODULE_MEMFAULT_USE_EXTERNAL_TRANSPORT
 	  The AWS IoT configuration of the application is the only implementation that currently
 	  supports this option.
 
-config DEBUG_MODULE_MEMFAULT_HEARTBEAT_INTERVAL_SEC
-	int "Memfault heartbeat interval in seconds"
-	default 1800
-	help
-	  Configuration that sets how often Memfault captures and prepares data that will be sent
-	  to Memfault cloud. Reduce this interval to get more frequent updates to Memfault.
-	  Note that data transmitted to Memfault cloud is still dependent on how often the
-	  application sends data, which can be manipulated by setting the application's real-time
-	  configurations.
-
 config DEBUG_MODULE_MEMFAULT_WATCHDOG_DELTA_MS
 	int "Memfault software watchdog delta"
 	default 5000
diff --git a/samples/bluetooth/peripheral_mds/memfault_config/memfault_platform_config.h b/samples/bluetooth/peripheral_mds/memfault_config/memfault_platform_config.h
index 3c157296159a..6d339e5f44e6 100644
--- a/samples/bluetooth/peripheral_mds/memfault_config/memfault_platform_config.h
+++ b/samples/bluetooth/peripheral_mds/memfault_config/memfault_platform_config.h
@@ -9,4 +9,3 @@
  * "<NCS folder>/modules/lib/memfault-firmware-sdk/components/include/memfault/default_config.h"
  */
 
- /* #define MEMFAULT_METRICS_HEARTBEAT_INTERVAL_SECS 1800 */
diff --git a/samples/debug/memfault/config/memfault_platform_config.h b/samples/debug/memfault/config/memfault_platform_config.h
index 078c7f48ad4c..de9eb62d885b 100644
--- a/samples/debug/memfault/config/memfault_platform_config.h
+++ b/samples/debug/memfault/config/memfault_platform_config.h
@@ -12,10 +12,3 @@
  * "<NCS folder>/modules/lib/memfault-firmware-sdk/components/include/memfault/default_config.h"
  */
 
-/* Uncomment the definition below to override the default setting for
- * heartbeat interval. This will prepare the captured metric data for upload
- * to Memfault cloud at the specified interval.
- */
-/*
- * #define MEMFAULT_METRICS_HEARTBEAT_INTERVAL_SECS 1800
- */
diff --git a/west.yml b/west.yml
index 93c76dad1011..527bf86556b9 100644
--- a/west.yml
+++ b/west.yml
@@ -261,7 +261,7 @@ manifest:
       remote: throwtheswitch
     - name: memfault-firmware-sdk
       path: modules/lib/memfault-firmware-sdk
-      revision: 1.12.0
+      revision: 1.19.0
       remote: memfault
     - name: bsim
       repo-path: bsim_west