diff --git a/CHANGELOG.md b/CHANGELOG.md
index 458d92e..ece62b8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog for Pelion Device Management Client example application
 
+## Release 4.11.2 (01.12.2021)
+
+Updated to Mbed OS 6.15.0.
+
 ## Release 4.11.1 (11.10.2021)
 
 - Updated Parsec to 0.6.0 version. This version is compatible with Mbed TLS 2.27.0.
diff --git a/mbed-cloud-client.lib b/mbed-cloud-client.lib
index be8505e..4868938 100644
--- a/mbed-cloud-client.lib
+++ b/mbed-cloud-client.lib
@@ -1 +1 @@
-https://github.com/PelionIoT/mbed-cloud-client/#8a30590179cdfb4c6949a7f5b14cae39448d8454
+https://github.com/PelionIoT/mbed-cloud-client/#08d12fb1878c795a7a05770beee485e054bf23b0
diff --git a/mbed-os.lib b/mbed-os.lib
index 68e51ac..5d6d1e1 100644
--- a/mbed-os.lib
+++ b/mbed-os.lib
@@ -1 +1 @@
-https://github.com/ARMmbed/mbed-os/#3377f083b3a6bd7a1b45ed2cea5cf083b9007527
+https://github.com/ARMmbed/mbed-os/#4cfbea43cabe86bc3ed7a5287cd464be7a218938
diff --git a/west.yml b/west.yml
index ccf20e1..287cc3d 100644
--- a/west.yml
+++ b/west.yml
@@ -10,7 +10,7 @@ manifest:
     - name: pelion-dm
       repo-path: mbed-cloud-client
       remote: PelionIoT
-      revision: 8a30590179cdfb4c6949a7f5b14cae39448d8454
+      revision: 08d12fb1878c795a7a05770beee485e054bf23b0
       path: modules/lib/pelion-dm
     - name: zephyr
       remote: zephyrproject-rtos