diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4253accf2366bdd3d230b004b0491e326776f7f7..1c9b08482781eba190130e38cdf78b18d33dccdf 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 30)
+SET( CPACK_PACKAGE_VERSION_PATCH 31)
 
 
 # init CellFrame SDK
diff --git a/cellframe-sdk b/cellframe-sdk
index 9f3e9ef2136b0ac41c0dce80e28257704bff6203..1e9d02362b2ff0dd018960773b7600124b1660f1 160000
--- a/cellframe-sdk
+++ b/cellframe-sdk
@@ -1 +1 @@
-Subproject commit 9f3e9ef2136b0ac41c0dce80e28257704bff6203
+Subproject commit 1e9d02362b2ff0dd018960773b7600124b1660f1