diff --git a/meta-arm-systemready/recipes-test/arm-systemready-acs/arm-systemready-ir-acs.bb b/meta-arm-systemready/recipes-test/arm-systemready-acs/arm-systemready-ir-acs.bb
index eef1c0456c..3558d4a08e 100644
--- a/meta-arm-systemready/recipes-test/arm-systemready-acs/arm-systemready-ir-acs.bb
+++ b/meta-arm-systemready/recipes-test/arm-systemready-acs/arm-systemready-ir-acs.bb
@@ -48,7 +48,7 @@ TEST_SUITES = "arm_systemready_ir_acs"
 PV = "2.0.0"
 PV_DATE = "23.03"
 FULL_PV = "v${PV_DATE}_${PV}"
-ARM_SYSTEMREADY_IR_ACS_BRANCH ?= "main"
+ARM_SYSTEMREADY_IR_ACS_BRANCH ?= "legacy_systemready"
 IMAGE_FILENAME = "ir-acs-live-image-generic-arm64-${PV}.wic"
 SRC_URI = " \
     https://github.com/ARM-software/arm-systemready/raw/${ARM_SYSTEMREADY_IR_ACS_BRANCH}/IR/prebuilt_images/${FULL_PV}/ir-acs-live-image-generic-arm64.wic.xz;name=acs-img;downloadfilename=${IMAGE_FILENAME}.xz \