diff --git a/CMakeLists.txt b/CMakeLists.txt
index 042526d0342e4dc217021609d7d849ba9f5080e6..df3b9c2ffce06c833de5ed41beffb71af771687f 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 50)
+SET( CPACK_PACKAGE_VERSION_PATCH 55)
 
 # init CellFrame SDK
 add_definitions("-DDAP_VERSION=\"${CPACK_PACKAGE_VERSION_MAJOR}-${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}\"")
diff --git a/cellframe-sdk b/cellframe-sdk
index 06c013384372ff66537eab7e969ed67a16530a63..c90f65b8bf5889bfef7853de07305fcbbce4ee61 160000
--- a/cellframe-sdk
+++ b/cellframe-sdk
@@ -1 +1 @@
-Subproject commit 06c013384372ff66537eab7e969ed67a16530a63
+Subproject commit c90f65b8bf5889bfef7853de07305fcbbce4ee61