diff --git a/CMakeLists.txt b/CMakeLists.txt
index c1eecdc4548d47b04d9572cda61aeb8c280bab0f..c445bad4f88ae68089edb6da9d13529a6feab2b9 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 38)
+SET( CPACK_PACKAGE_VERSION_PATCH 39)
 
 
 # init CellFrame SDK
diff --git a/cellframe-sdk b/cellframe-sdk
index 1ef8c4941feec98c25b0a27443d10cee538c3e37..6c2ea815f824c68cc0be478f46734b9c5c852244 160000
--- a/cellframe-sdk
+++ b/cellframe-sdk
@@ -1 +1 @@
-Subproject commit 1ef8c4941feec98c25b0a27443d10cee538c3e37
+Subproject commit 6c2ea815f824c68cc0be478f46734b9c5c852244