diff --git a/zuul.d/grenade-jobs.yaml b/zuul.d/grenade-jobs.yaml
index 00049dae9c..7f5a2ecb26 100644
--- a/zuul.d/grenade-jobs.yaml
+++ b/zuul.d/grenade-jobs.yaml
@@ -97,10 +97,24 @@
       Grenade job that skips a release, validating that deployers can skip
       specific releases as prescribed by our process.
     parent: manila-grenade
+    # NOTE(gmann): This job is started and meant to be run from Yoga release.
+    # This job is meant to validate the SLURP to SLURP release
+    # upgrade so supposed to run on SLURP release gate only. To make sure
+    # that, when the current master is not SLURP release, below branch variant will
+    # stop running it on not SLURP release master. And once new SLURP release start
+    # (means the current master is SLURP release), we need to remove the 'master'
+    # from the below branch variant condition so that it again start running on
+    # SLURP release master gate.
+    # Along with grenade gate, this job runs on many other projects gate
+    # also and in this job definition, we control for everyone to run on SLURP
+    # release only.
+    branches: ^(?!stable/(pike|queens|rocky|stein|train|ussuri|victoria|wallaby|xena|zed)).*$
     vars:
       # Move this forward when master changes to a new skip-level-allowed
-      # target release. Right now, this is wallaby because master is yoga.
-      # When master is A, this should become yoga, and so forth.
-      grenade_from_branch: stable/wallaby
+      # target release. Right now, this is stable/yoga because current master is 2023.1
+      # (which is N+2 release from yoga so skipping zed release and testing the upgrade
+      # from stable/yoga -> 2023.1). When master is 2023.3, this should become 2023.1,
+      # and so forth.
+      grenade_from_branch: stable/yoga
       grenade_localrc:
-        NOVA_ENABLE_UPGRADE_WORKAROUND: True
\ No newline at end of file
+        NOVA_ENABLE_UPGRADE_WORKAROUND: True