diff --git a/CMakeLists.txt b/CMakeLists.txt
index d03f32045c99c2e13d71aab2a4701bc9171371a0..eb40f7c9effeee06dcd31a592682663d9708c955 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 3)
+SET( CPACK_PACKAGE_VERSION_PATCH 4)
 
 # init CellFrame SDK
 add_definitions("-DDAP_VERSION=\"${CPACK_PACKAGE_VERSION_MAJOR}\"")
diff --git a/cellframe-sdk b/cellframe-sdk
index 3b596b2e23b1c270a50453a93d84637cb2b60f99..5121167e3e7927c4c282ba86df56455a08f9fc77 160000
--- a/cellframe-sdk
+++ b/cellframe-sdk
@@ -1 +1 @@
-Subproject commit 3b596b2e23b1c270a50453a93d84637cb2b60f99
+Subproject commit 5121167e3e7927c4c282ba86df56455a08f9fc77