diff --git a/.tekton/pull-request.yaml b/.tekton/pull-request.yaml
index 55279e1dd..9561ce669 100644
--- a/.tekton/pull-request.yaml
+++ b/.tekton/pull-request.yaml
@@ -4,7 +4,21 @@ kind: PipelineRun
 metadata:
   name: build-definitions-pull-request
   annotations:
-    pipelinesascode.tekton.dev/on-cel-expression: (event == "pull_request" && target_branch == "main" && ( !has(body.pull_request) || !body.pull_request.draft) ) || (event == "push" && target_branch.startsWith("gh-readonly-queue/main/"))
+    pipelinesascode.tekton.dev/on-cel-expression: |
+      (
+          (
+              // PR to "main" branch, not draft
+              event == "pull_request" && target_branch == "main"
+              && (!has(body.pull_request) || !body.pull_request.draft)
+          ) || (
+              // PR enters the merge queue
+              event == "push" && target_branch.startsWith("gh-readonly-queue/main/")
+          )
+      ) && (
+          // Don't run pipeline if only these files changed. Note that 'files.all' is an object
+          // coming from PaC (list of all changed files) while the second 'all' is a CEL macro.
+          !files.all.all(x, x.matches(r"^(renovate\.json|.*\.md|\.github/.*)$"))
+      )
     pipelinesascode.tekton.dev/task: "[task/git-clone/0.1/git-clone.yaml, .tekton/tasks/buildah.yaml, .tekton/tasks/yaml-lint.yaml, .tekton/tasks/e2e-test.yaml, task/sast-snyk-check/0.1/sast-snyk-check.yaml]"
     pipelinesascode.tekton.dev/task-2: "yaml-lint"
     pipelinesascode.tekton.dev/max-keep-runs: "5"