diff --git a/core/build_id.mk b/core/build_id.mk
index ba5ca42..a489788 100644
--- a/core/build_id.mk
+++ b/core/build_id.mk
@@ -18,4 +18,4 @@
 # (like "CRB01").  It must be a single word, and is
 # capitalized by convention.
 
-BUILD_ID=AOSP.MASTER
+BUILD_ID=TM
diff --git a/core/version_defaults.mk b/core/version_defaults.mk
index e288779..c107254 100644
--- a/core/version_defaults.mk
+++ b/core/version_defaults.mk
@@ -103,7 +103,7 @@
     #  It must be of the form "YYYY-MM-DD" on production devices.
     #  It must match one of the Android Security Patch Level strings of the Public Security Bulletins.
     #  If there is no $PLATFORM_SECURITY_PATCH set, keep it empty.
-    PLATFORM_SECURITY_PATCH := 2023-07-05
+    PLATFORM_SECURITY_PATCH := 2023-06-05
 endif
 
 include $(BUILD_SYSTEM)/version_util.mk