diff --git a/BLE_BatteryLevel/mbed-os.lib b/BLE_BatteryLevel/mbed-os.lib
index 10935688..fe29814e 100644
--- a/BLE_BatteryLevel/mbed-os.lib
+++ b/BLE_BatteryLevel/mbed-os.lib
@@ -1 +1 @@
-https://github.com/ARMmbed/mbed-os/#0789928ee7f2db08a419fa4a032fffd9bd477aa7
+https://github.com/ARMmbed/mbed-os/#34c1facf42a174f47fdf9002cd8c6bf10ac41744
diff --git a/BLE_Beacon/mbed-os.lib b/BLE_Beacon/mbed-os.lib
index 10935688..fe29814e 100644
--- a/BLE_Beacon/mbed-os.lib
+++ b/BLE_Beacon/mbed-os.lib
@@ -1 +1 @@
-https://github.com/ARMmbed/mbed-os/#0789928ee7f2db08a419fa4a032fffd9bd477aa7
+https://github.com/ARMmbed/mbed-os/#34c1facf42a174f47fdf9002cd8c6bf10ac41744
diff --git a/BLE_Button/mbed-os.lib b/BLE_Button/mbed-os.lib
index 10935688..fe29814e 100644
--- a/BLE_Button/mbed-os.lib
+++ b/BLE_Button/mbed-os.lib
@@ -1 +1 @@
-https://github.com/ARMmbed/mbed-os/#0789928ee7f2db08a419fa4a032fffd9bd477aa7
+https://github.com/ARMmbed/mbed-os/#34c1facf42a174f47fdf9002cd8c6bf10ac41744
diff --git a/BLE_EddystoneObserver/mbed-os.lib b/BLE_EddystoneObserver/mbed-os.lib
index 10935688..fe29814e 100644
--- a/BLE_EddystoneObserver/mbed-os.lib
+++ b/BLE_EddystoneObserver/mbed-os.lib
@@ -1 +1 @@
-https://github.com/ARMmbed/mbed-os/#0789928ee7f2db08a419fa4a032fffd9bd477aa7
+https://github.com/ARMmbed/mbed-os/#34c1facf42a174f47fdf9002cd8c6bf10ac41744
diff --git a/BLE_EddystoneService/mbed-os.lib b/BLE_EddystoneService/mbed-os.lib
index 10935688..fe29814e 100644
--- a/BLE_EddystoneService/mbed-os.lib
+++ b/BLE_EddystoneService/mbed-os.lib
@@ -1 +1 @@
-https://github.com/ARMmbed/mbed-os/#0789928ee7f2db08a419fa4a032fffd9bd477aa7
+https://github.com/ARMmbed/mbed-os/#34c1facf42a174f47fdf9002cd8c6bf10ac41744
diff --git a/BLE_GAPButton/mbed-os.lib b/BLE_GAPButton/mbed-os.lib
index 10935688..fe29814e 100644
--- a/BLE_GAPButton/mbed-os.lib
+++ b/BLE_GAPButton/mbed-os.lib
@@ -1 +1 @@
-https://github.com/ARMmbed/mbed-os/#0789928ee7f2db08a419fa4a032fffd9bd477aa7
+https://github.com/ARMmbed/mbed-os/#34c1facf42a174f47fdf9002cd8c6bf10ac41744
diff --git a/BLE_HeartRate/mbed-os.lib b/BLE_HeartRate/mbed-os.lib
index 10935688..fe29814e 100644
--- a/BLE_HeartRate/mbed-os.lib
+++ b/BLE_HeartRate/mbed-os.lib
@@ -1 +1 @@
-https://github.com/ARMmbed/mbed-os/#0789928ee7f2db08a419fa4a032fffd9bd477aa7
+https://github.com/ARMmbed/mbed-os/#34c1facf42a174f47fdf9002cd8c6bf10ac41744
diff --git a/BLE_LED/mbed-os.lib b/BLE_LED/mbed-os.lib
index 10935688..fe29814e 100644
--- a/BLE_LED/mbed-os.lib
+++ b/BLE_LED/mbed-os.lib
@@ -1 +1 @@
-https://github.com/ARMmbed/mbed-os/#0789928ee7f2db08a419fa4a032fffd9bd477aa7
+https://github.com/ARMmbed/mbed-os/#34c1facf42a174f47fdf9002cd8c6bf10ac41744
diff --git a/BLE_LEDBlinker/mbed-os.lib b/BLE_LEDBlinker/mbed-os.lib
index 10935688..fe29814e 100644
--- a/BLE_LEDBlinker/mbed-os.lib
+++ b/BLE_LEDBlinker/mbed-os.lib
@@ -1 +1 @@
-https://github.com/ARMmbed/mbed-os/#0789928ee7f2db08a419fa4a032fffd9bd477aa7
+https://github.com/ARMmbed/mbed-os/#34c1facf42a174f47fdf9002cd8c6bf10ac41744
diff --git a/BLE_Thermometer/mbed-os.lib b/BLE_Thermometer/mbed-os.lib
index 10935688..fe29814e 100644
--- a/BLE_Thermometer/mbed-os.lib
+++ b/BLE_Thermometer/mbed-os.lib
@@ -1 +1 @@
-https://github.com/ARMmbed/mbed-os/#0789928ee7f2db08a419fa4a032fffd9bd477aa7
+https://github.com/ARMmbed/mbed-os/#34c1facf42a174f47fdf9002cd8c6bf10ac41744
diff --git a/BLE_URIBeacon/mbed-os.lib b/BLE_URIBeacon/mbed-os.lib
index 10935688..fe29814e 100644
--- a/BLE_URIBeacon/mbed-os.lib
+++ b/BLE_URIBeacon/mbed-os.lib
@@ -1 +1 @@
-https://github.com/ARMmbed/mbed-os/#0789928ee7f2db08a419fa4a032fffd9bd477aa7
+https://github.com/ARMmbed/mbed-os/#34c1facf42a174f47fdf9002cd8c6bf10ac41744