diff --git a/CMakeLists.txt b/CMakeLists.txt
index c8e14c7348ccd394198a64aea154a6a45eefe05d..e8a28d768662fd49a819c68db924510abd8e7268 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 0)
-SET( CPACK_PACKAGE_VERSION_PATCH 54)
+SET( CPACK_PACKAGE_VERSION_PATCH 55)
 
 # init CellFrame SDK
 add_definitions("-DDAP_VERSION=\"${CPACK_PACKAGE_VERSION_MAJOR}\"")
diff --git a/cellframe-sdk b/cellframe-sdk
index f64dec9f5234a77cc67b5ea7a355be86b3f80466..dc8c90db24f2f59c0c6841df043846b4f65215d5 160000
--- a/cellframe-sdk
+++ b/cellframe-sdk
@@ -1 +1 @@
-Subproject commit f64dec9f5234a77cc67b5ea7a355be86b3f80466
+Subproject commit dc8c90db24f2f59c0c6841df043846b4f65215d5