diff --git a/.gitmodules b/.gitmodules
index dcac5fba3b30e5c561be87920eed2177945dfccd..f8507c5701f846483bb94febae70684475d3b162 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -5,8 +5,8 @@
 [submodule "python-cellframe"]
 	path = python-cellframe
 	url = ../python-cellframe.git
-	branch = master
+	branch = testing
 [submodule "cellframe-sdk"]
 	path = cellframe-sdk
 	url = ../cellframe-sdk.git
-	branch = master
+	branch = testing
diff --git a/CMakeLists.txt b/CMakeLists.txt
index fd44054de682743a1bdc31439d198fde83dc7654..43587f36bbdbf017d5b2a83aaa48af450c1782e2 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 1)
+SET( CPACK_PACKAGE_VERSION_PATCH 2)
 
 # init CellFrame SDK
 add_definitions("-DDAP_VERSION=\"${CPACK_PACKAGE_VERSION_MAJOR}\"")
diff --git a/cellframe-sdk b/cellframe-sdk
index a85fd11715d9260b06e8581dc57f146fbf44c1b3..5400e94c8dcd78bafe2b312b159648a22adb93a6 160000
--- a/cellframe-sdk
+++ b/cellframe-sdk
@@ -1 +1 @@
-Subproject commit a85fd11715d9260b06e8581dc57f146fbf44c1b3
+Subproject commit 5400e94c8dcd78bafe2b312b159648a22adb93a6
diff --git a/python-cellframe b/python-cellframe
index 5da465b0831ece53fa64900f8069d60e93a1de98..8409f94041028ab58b859b112894d9f37bcb9682 160000
--- a/python-cellframe
+++ b/python-cellframe
@@ -1 +1 @@
-Subproject commit 5da465b0831ece53fa64900f8069d60e93a1de98
+Subproject commit 8409f94041028ab58b859b112894d9f37bcb9682