diff --git a/.github/sync-repo-settings.yaml b/.github/sync-repo-settings.yaml
index cc69b2551..8634a3043 100644
--- a/.github/sync-repo-settings.yaml
+++ b/.github/sync-repo-settings.yaml
@@ -4,6 +4,8 @@ branchProtectionRules:
 # Identifies the protection rule pattern. Name of the branch to be protected.
 # Defaults to `master`
 - pattern: master
+  requiresCodeOwnerReviews: true
+  requiresStrictStatusChecks: true
   requiredStatusCheckContexts:
     - 'Kokoro'
     - 'Kokoro snippets-3.8'
@@ -13,6 +15,8 @@ branchProtectionRules:
     - 'Samples - Python 3.7'
     - 'Samples - Python 3.8'
 - pattern: v3
+  requiresCodeOwnerReviews: true
+  requiresStrictStatusChecks: true
   requiredStatusCheckContexts:
     - 'Kokoro'
     - 'Kokoro snippets-3.8'