diff --git a/CMakeLists.txt b/CMakeLists.txt
index 621ed6bf7de69fa89669d57b7f0ddf798f700175..17567efca9aa2476dbd91fec861bb27682e0b5b5 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 4)
-SET( CPACK_PACKAGE_VERSION_PATCH 49)
+SET( CPACK_PACKAGE_VERSION_PATCH 51)
 
 # init CellFrame SDK
 add_definitions("-DDAP_VERSION=\"${CPACK_PACKAGE_VERSION_MAJOR}-${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}\"")
diff --git a/cellframe-sdk b/cellframe-sdk
index 8ecc9ea0306a36d619a986d384e58a7f075c2f3d..722979ce29c19a1bc6e72a57f8e8ef76e490f342 160000
--- a/cellframe-sdk
+++ b/cellframe-sdk
@@ -1 +1 @@
-Subproject commit 8ecc9ea0306a36d619a986d384e58a7f075c2f3d
+Subproject commit 722979ce29c19a1bc6e72a57f8e8ef76e490f342
diff --git a/prod_build b/prod_build
index 147d3c418c8be0cfb8f10e6293fd1316eb7a2d08..f6f8d1e4bf8ab62037f6eb5a17f807eef11a2f05 160000
--- a/prod_build
+++ b/prod_build
@@ -1 +1 @@
-Subproject commit 147d3c418c8be0cfb8f10e6293fd1316eb7a2d08
+Subproject commit f6f8d1e4bf8ab62037f6eb5a17f807eef11a2f05