diff --git a/.github/workflows/publish-bcr.yml b/.github/workflows/publish-bcr.yml
index 4c9d47b..b0ed1e4 100644
--- a/.github/workflows/publish-bcr.yml
+++ b/.github/workflows/publish-bcr.yml
@@ -103,6 +103,11 @@ jobs:
               -f base=main \
               -f body='Publish the Codescythe binary toolchain overlay.' \
               --jq .html_url)"
+            pr_number="${pr_url##*/}"
+            gh api \
+              --method POST \
+              "repos/bazelbuild/bazel-central-registry/issues/$pr_number/comments" \
+              -f body='@bazel-io skip_check unstable_url'
           fi
 
           echo "$pr_url" >> "$GITHUB_STEP_SUMMARY"