diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0e27a25b1be48aa7d9d72154998eeb605aae44d0..8b3fa81ad22bf74901e37f8abe38159df9df5cfb 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 56)
+SET( CPACK_PACKAGE_VERSION_PATCH 57)
 
 # init CellFrame SDK
 #
diff --git a/cellframe-sdk b/cellframe-sdk
index d3e2ebcec22eab96e7936fcd8b204329083adb8f..4a2cf2d2d9a62c31f6e8802c42ed4237b76ccda2 160000
--- a/cellframe-sdk
+++ b/cellframe-sdk
@@ -1 +1 @@
-Subproject commit d3e2ebcec22eab96e7936fcd8b204329083adb8f
+Subproject commit 4a2cf2d2d9a62c31f6e8802c42ed4237b76ccda2