diff --git a/Makefile b/Makefile
index c55e2e0..4d033d1 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 TOP = $(PWD)
 TOOLCHAIN = $(TOP)/xtensa-lx106-elf
-VENDOR_SDK = 0.9.3
+VENDOR_SDK = 0.9.4
 
 UNZIP = unzip -q -o