diff --git a/CMakeLists.txt b/CMakeLists.txt
index d78683e00c416e95be3776c5c5bb503c702b40ca..0d249e88f0518e5024c5d92d7fff9e7407de3f22 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,7 +8,7 @@ set(CMAKE_C_STANDARD 11)
 SET( CPACK_PACKAGE_NAME  "${PROJECT_NAME}")
 SET( CPACK_PACKAGE_VERSION_MAJOR 4)
 SET( CPACK_PACKAGE_VERSION_MINOR 1)
-SET( CPACK_PACKAGE_VERSION_PATCH 52)
+SET( CPACK_PACKAGE_VERSION_PATCH 53)
 
 # init CellFrame SDK
 #
diff --git a/cellframe-sdk b/cellframe-sdk
index bfd62cc4293b448feba73acd6976d973f3b4150a..9d687d31db78e28acb4a30522dd6ac34aff951e5 160000
--- a/cellframe-sdk
+++ b/cellframe-sdk
@@ -1 +1 @@
-Subproject commit bfd62cc4293b448feba73acd6976d973f3b4150a
+Subproject commit 9d687d31db78e28acb4a30522dd6ac34aff951e5