diff --git a/Makefile b/Makefile
index 853420b6f..3da8b113b 100644
--- a/Makefile
+++ b/Makefile
@@ -347,8 +347,8 @@ ifeq ($(OS), Darwin)
 	@# support iamcu instruction set on the Arduino 101
 	@echo "CONFIG_X86_IAMCU=n" >> prj.conf
 endif
-	@echo "CONFIG_RAM_SIZE=$(RAM)" >> prj.conf
-	@echo "CONFIG_ROM_SIZE=$(ROM)" >> prj.conf
+#	@echo "CONFIG_RAM_SIZE=$(RAM)" >> prj.conf
+#	@echo "CONFIG_ROM_SIZE=$(ROM)" >> prj.conf
 	@printf "CONFIG_SS_RESET_VECTOR=0x400%x\n" $$((($(ROM) + 64) * 1024)) >> prj.conf
 	@echo "&flash0 { reg = <0x40010000 ($(ROM) * 1024)>; };" > arduino_101.overlay
 	@echo "&flash1 { reg = <0x40030000 ($(ROM) * 1024)>; };" >> arduino_101.overlay
diff --git a/arc/src/zjs_arc.json b/arc/src/zjs_arc.json
index c979188e3..5f96cf8bf 100644
--- a/arc/src/zjs_arc.json
+++ b/arc/src/zjs_arc.json
@@ -6,8 +6,7 @@
             "CONFIG_STDOUT_CONSOLE=y",
             "CONFIG_PRINTK=y",
             "CONFIG_CONSOLE=y",
-            "CONFIG_SERIAL=n",
-            "CONFIG_NS16550=n"
+            "CONFIG_SERIAL=n"
         ]
     },
     "src": ["../src/zjs_common.c"]
diff --git a/cmake/zjs.cmake b/cmake/zjs.cmake
index 953b95d20..4ee1c97d2 100644
--- a/cmake/zjs.cmake
+++ b/cmake/zjs.cmake
@@ -86,7 +86,7 @@ target_include_directories(app PRIVATE ${APP_INCLUDES})
 
 target_sources(app PRIVATE ${APP_SRC})
 
-target_link_libraries(app jerry-core jerry-ext)
+target_link_libraries(app PUBLIC jerry-core jerry-ext)
 
 include(cmake/jerry.cmake)
 # additional configuration will be generated by analyze script
diff --git a/deps/zephyr b/deps/zephyr
index 00ba8c339..cebe11544 160000
--- a/deps/zephyr
+++ b/deps/zephyr
@@ -1 +1 @@
-Subproject commit 00ba8c339afd89d09e732d1679b8a38f481cdb7a
+Subproject commit cebe11544ebeaed9a0c9ffd722c1639fa7463cbe
diff --git a/src/zjs_qemu_x86.json b/src/zjs_qemu_x86.json
index 56540d9ea..a6f36e555 100644
--- a/src/zjs_qemu_x86.json
+++ b/src/zjs_qemu_x86.json
@@ -3,8 +3,6 @@
     "targets": ["qemu_x86"],
     "zephyr_conf": {
         "qemu_x86": [
-            "CONFIG_RAM_SIZE=4096",
-            "CONFIG_ROM_SIZE=4092"
         ]
     }
 }