diff --git a/ci/pr-manager-pipeline.yml b/ci/pr-manager-pipeline.yml
index b9f3504..1b74e48 100644
--- a/ci/pr-manager-pipeline.yml
+++ b/ci/pr-manager-pipeline.yml
@@ -61,4 +61,5 @@ resources:
     source:
       repository: ((app-broker-pr-github-pull-requests-repo))
       access_token: ((app-broker-pr-github-pull-requests-access-token))
+      disable_forks: true
       required_review_approvals: 1
diff --git a/ci/pr-pipeline.yml b/ci/pr-pipeline.yml
index bc3c603..29dc131 100644
--- a/ci/pr-pipeline.yml
+++ b/ci/pr-pipeline.yml
@@ -87,6 +87,7 @@ resources:
       repository: ((app-broker-pr-github-pull-requests-repo))
       access_token: ((app-broker-pr-github-pull-requests-access-token))
       base_branch: ((pr.base-branch))
+      disable_forks: true
       required_review_approvals: 1
 
   - name: alert