diff --git a/CMakeLists.txt b/CMakeLists.txt
index 14e9b9a2..9d1574d1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@ endif (NOT CMAKE_BUILD_TYPE)
 enable_language(C ASM)
 
 project(mckernel C ASM)
-set(MCKERNEL_VERSION "1.7.0rc3")
+set(MCKERNEL_VERSION "1.7.0rc4")
 
 set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/modules)
 # for rpmbuild
diff --git a/ihk b/ihk
index 1dbf0328..f9b6e037 160000
--- a/ihk
+++ b/ihk
@@ -1 +1 @@
-Subproject commit 1dbf0328cf5a3bcccff4d8ed4a577aa9441dd74c
+Subproject commit f9b6e0378ecbc6f8e22ef9718f89a686951004c9