diff --git a/.tekton/scanner-build.yaml b/.tekton/scanner-build.yaml
index 2ddba6c1d..459a75075 100644
--- a/.tekton/scanner-build.yaml
+++ b/.tekton/scanner-build.yaml
@@ -9,7 +9,7 @@ metadata:
     build.appstudio.redhat.com/target_branch: '{{target_branch}}'
     pipelinesascode.tekton.dev/max-keep-runs: "500"
     # TODO(ROX-21073): re-enable for all PR branches
-    pipelinesascode.tekton.dev/on-cel-expression: (event == "push" && (target_branch == "master" || target_branch.startsWith("release-"))) || (event == "pull_request" && (source_branch.contains("konflux") || source_branch.contains("appstudio") || source_branch.contains("rhtap")))
+    pipelinesascode.tekton.dev/on-cel-expression: (event == "push" && target_branch.matches("^(master|release-.*)$")) || (event == "pull_request" && source_branch.matches("(konflux|appstudio|rhtap)"))
   creationTimestamp: null
   labels:
     appstudio.openshift.io/application: acs
diff --git a/.tekton/scanner-db-build.yaml b/.tekton/scanner-db-build.yaml
index 63394c69c..f69610f3d 100644
--- a/.tekton/scanner-db-build.yaml
+++ b/.tekton/scanner-db-build.yaml
@@ -9,7 +9,7 @@ metadata:
     build.appstudio.redhat.com/target_branch: '{{target_branch}}'
     pipelinesascode.tekton.dev/max-keep-runs: "500"
     # TODO(ROX-21073): re-enable for all PR branches
-    pipelinesascode.tekton.dev/on-cel-expression: (event == "push" && (target_branch == "master" || target_branch.startsWith("release-"))) || (event == "pull_request" && (source_branch.contains("konflux") || source_branch.contains("appstudio") || source_branch.contains("rhtap")))
+    pipelinesascode.tekton.dev/on-cel-expression: (event == "push" && target_branch.matches("^(master|release-.*)$")) || (event == "pull_request" && source_branch.matches("(konflux|appstudio|rhtap)"))
   creationTimestamp: null
   labels:
     appstudio.openshift.io/application: acs
diff --git a/.tekton/scanner-db-slim-build.yaml b/.tekton/scanner-db-slim-build.yaml
index b1a42a083..0050b64c8 100644
--- a/.tekton/scanner-db-slim-build.yaml
+++ b/.tekton/scanner-db-slim-build.yaml
@@ -9,7 +9,7 @@ metadata:
     build.appstudio.redhat.com/target_branch: '{{target_branch}}'
     pipelinesascode.tekton.dev/max-keep-runs: "500"
     # TODO(ROX-21073): re-enable for all PR branches
-    pipelinesascode.tekton.dev/on-cel-expression: (event == "push" && (target_branch == "master" || target_branch.startsWith("release-"))) || (event == "pull_request" && (source_branch.contains("konflux") || source_branch.contains("appstudio") || source_branch.contains("rhtap")))
+    pipelinesascode.tekton.dev/on-cel-expression: (event == "push" && target_branch.matches("^(master|release-.*)$")) || (event == "pull_request" && source_branch.matches("(konflux|appstudio|rhtap)"))
   creationTimestamp: null
   labels:
     appstudio.openshift.io/application: acs
diff --git a/.tekton/scanner-slim-build.yaml b/.tekton/scanner-slim-build.yaml
index 144f7574e..c8b102d05 100644
--- a/.tekton/scanner-slim-build.yaml
+++ b/.tekton/scanner-slim-build.yaml
@@ -9,7 +9,7 @@ metadata:
     build.appstudio.redhat.com/target_branch: '{{target_branch}}'
     pipelinesascode.tekton.dev/max-keep-runs: "500"
     # TODO(ROX-21073): re-enable for all PR branches
-    pipelinesascode.tekton.dev/on-cel-expression: (event == "push" && (target_branch == "master" || target_branch.startsWith("release-"))) || (event == "pull_request" && (source_branch.contains("konflux") || source_branch.contains("appstudio") || source_branch.contains("rhtap")))
+    pipelinesascode.tekton.dev/on-cel-expression: (event == "push" && target_branch.matches("^(master|release-.*)$")) || (event == "pull_request" && source_branch.matches("(konflux|appstudio|rhtap)"))
   creationTimestamp: null
   labels:
     appstudio.openshift.io/application: acs