diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9e4a4b27d538a93ee1ebb2c9911b44a335c7613e..6020ff964beb64f1c5a098c66a211d2fd3f8cc2d 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 49)
+SET( CPACK_PACKAGE_VERSION_PATCH 50)
 
 # init CellFrame SDK
 add_definitions("-DDAP_VERSION=\"${CPACK_PACKAGE_VERSION_MAJOR}\"")
diff --git a/cellframe-sdk b/cellframe-sdk
index 21886ef54e5b6d00c605221271530f83201b1574..557d688dd02629f2864a3dabe88eb8ad425da934 160000
--- a/cellframe-sdk
+++ b/cellframe-sdk
@@ -1 +1 @@
-Subproject commit 21886ef54e5b6d00c605221271530f83201b1574
+Subproject commit 557d688dd02629f2864a3dabe88eb8ad425da934
diff --git a/python-cellframe b/python-cellframe
index 9f688d245a213efe62908045611494b09916e647..618770e6a20e04031fee135ef6c04ca4e2f1e8b7 160000
--- a/python-cellframe
+++ b/python-cellframe
@@ -1 +1 @@
-Subproject commit 9f688d245a213efe62908045611494b09916e647
+Subproject commit 618770e6a20e04031fee135ef6c04ca4e2f1e8b7