diff --git a/COLLABORATOR_GUIDE.md b/COLLABORATOR_GUIDE.md
index fb1b5182b37725..7a435c6478bf45 100644
--- a/COLLABORATOR_GUIDE.md
+++ b/COLLABORATOR_GUIDE.md
@@ -83,10 +83,11 @@ necessary.
 ### Author ready pull requests
 
 A pull request that is still awaiting the minimum review time is considered
-_author ready_ as soon as the CI has been started, it has at least one approval,
-and it has no outstanding review comments. Please always make sure to add the
-`author ready` label to the PR in that case and remove it again as soon as that
-condition is not met anymore.
+_author ready_ as soon as the CI has been started, it has at least two approvals
+(one Collaborator approval is enough if the pull request has been open for more
+than 7 days), and it has no outstanding review comments. Please always make sure
+to add the `author ready` label to the PR in that case and remove it again as
+soon as that condition is not met anymore.
 
 ### Handling own pull requests
 
diff --git a/doc/onboarding.md b/doc/onboarding.md
index 0c46318a7857bb..b08aabfff7d74e 100644
--- a/doc/onboarding.md
+++ b/doc/onboarding.md
@@ -99,7 +99,8 @@ onboarding session.
   * Please add the `author-ready` label for PRs where:
     * the CI has been started (not necessarily finished),
     * no outstanding review comments exist and
-    * at least one collaborator approved the PR.
+    * at least two Collaborators approved the PR (one Collaborator approval is
+      enough if the pull request has been open for more than 7 days).
 
 * See [Who to CC in the issue tracker][who-to-cc].
   * This will come more naturally over time