diff --git a/Makefile b/Makefile
index d1d7a0c..ad0f425 100644
--- a/Makefile
+++ b/Makefile
@@ -16,7 +16,7 @@ export JOBS :=
 export JOBS_CT_NG :=
 endif
 
-RACK_SDK_VERSION := 2.git.588342d7
+RACK_SDK_VERSION := 2.beta.1
 
 all: toolchain-all