diff --git a/CMakeLists.txt b/CMakeLists.txt
index c5236756e9c28034b76d7baecd22c6c1eb2f1853..75b00f3329e55f13e4f49f856b0fb252f6988bcf 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 51)
+SET( CPACK_PACKAGE_VERSION_PATCH 52)
 
 # init CellFrame SDK
 add_definitions("-DDAP_VERSION=\"${CPACK_PACKAGE_VERSION_MAJOR}\"")
diff --git a/cellframe-sdk b/cellframe-sdk
index 4e0d8da7331479832d8e248a422fa5c5fe9d879f..aaf9cae88860d7d01552288d38d692c34253223d 160000
--- a/cellframe-sdk
+++ b/cellframe-sdk
@@ -1 +1 @@
-Subproject commit 4e0d8da7331479832d8e248a422fa5c5fe9d879f
+Subproject commit aaf9cae88860d7d01552288d38d692c34253223d