diff --git a/packages/mergebot/README.md b/packages/mergebot/README.md
index 48805151b4..3a6a1ef8a1 100644
--- a/packages/mergebot/README.md
+++ b/packages/mergebot/README.md
@@ -99,7 +99,7 @@ To create fixtures of a current PR:
 
 ```sh
 # To create a fixture for PR 43161
-pnpm run create-fixture -- 43161
+pnpm run create-fixture 43161
 ```
 
 Then you can work against these fixtures offline with:
diff --git a/packages/mergebot/src/functions/pr-trigger.ts b/packages/mergebot/src/functions/pr-trigger.ts
index a5dae1372f..44a52cde72 100644
--- a/packages/mergebot/src/functions/pr-trigger.ts
+++ b/packages/mergebot/src/functions/pr-trigger.ts
@@ -12,10 +12,11 @@ import { httpLog, shouldRunRequest } from "../util/verify";
 import type {
   CheckSuiteEvent,
   IssueCommentEvent,
-  ProjectCardEvent,
+  ProjectsV2ItemEvent,
   PullRequestEvent,
   PullRequestReviewEvent,
 } from "@octokit/webhooks-types";
+import { runQueryToGetPRForCardId } from "../queries/card-id-to-pr-query";
 
 app.http("PR-Trigger", { methods: ["GET", "POST"], authLevel: "anonymous", handler: httpTrigger });
 const eventNames = [
@@ -23,7 +24,7 @@ const eventNames = [
   "issue_comment.created",
   "issue_comment.deleted",
   "issue_comment.edited",
-  "project_card.moved",
+  "projects_v2_item.edited",
   "pull_request.closed",
   "pull_request.edited",
   "pull_request.opened",
@@ -36,7 +37,7 @@ const eventNames = [
 type PrEvent =
   | { name: "check_suite"; payload: CheckSuiteEvent }
   | { name: "issue_comment"; payload: IssueCommentEvent }
-  | { name: "project_card"; payload: ProjectCardEvent }
+  | { name: "projects_v2_item"; payload: ProjectsV2ItemEvent }
   | { name: "pull_request"; payload: PullRequestEvent }
   | { name: "pull_request_review"; payload: PullRequestReviewEvent };
 
@@ -120,15 +121,11 @@ const prFromEvent = async (event: PrEvent) => {
       return prFromCheckSuiteEvent(event.payload);
     case "issue_comment":
       return event.payload.issue;
-    // "Parse" project_card.content_url according to repository.pulls_url
-    case "project_card": {
-      const url = event.payload.project_card.content_url;
-      return url
-        ? { number: +url.replace(/^.*\//, "") }
-        : new IgnoredBecause(
-            `Couldn't find PR number since content_url is missing: ${JSON.stringify(event.payload.project_card)}`,
-          );
-    }
+    case "projects_v2_item":
+      const pr = await runQueryToGetPRForCardId(event.payload.projects_v2_item.node_id);
+      return pr
+        ? { number: pr.number }
+        : new IgnoredBecause(`Could not find PR for card_id: ${event.payload.projects_v2_item.node_id}`);
     case "pull_request":
       return event.payload.pull_request;
     case "pull_request_review":
diff --git a/packages/mergebot/src/run.ts b/packages/mergebot/src/run.ts
index 414c64485d..9b7f61fabe 100755
--- a/packages/mergebot/src/run.ts
+++ b/packages/mergebot/src/run.ts
@@ -126,12 +126,8 @@ const start = async function () {
   //
   console.log("Cleaning up cards");
   const { columns, id: projectId } = await getProjectBoardCards();
-  const deleteObject = async (id: string, shoulda?: string) => {
-    if (shoulda) {
-      // don't automatically delete these, eg, PRs that were created
-      // during the scan would end up here.
-      return console.log(`  Should delete "${id}" (${shoulda})`);
-    }
+  const deleteObject = async (id: string) => {
+    console.log(`  Deleting card ${id}`);
     const mutation = createMutation<schema.DeleteProjectV2ItemInput>("deleteProjectV2Item", { projectId, itemId: id });
     await client.mutate(mutation);
   };
@@ -150,15 +146,18 @@ const start = async function () {
   // Handle other columns
   for (const [name, cards] of columns) {
     if (name === "Recently Merged") continue;
-    const ids = cards.map((c) => c.id).filter((c) => !cardIDs.includes(c));
+    const ids = cards.map((c) => c.id).filter((id) => !cardIDs.includes(id));
     if (ids.length === 0) continue;
     console.log(`Cleaning up closed PRs in "${name}"`);
     for (const id of ids) {
       const info = await runQueryToGetPRForCardId(id);
-      await deleteObject(
-        id,
-        info === undefined ? "???" : info.state === "CLOSED" || info.state === "MERGED" ? undefined : "#" + info.number,
-      );
+      if (!info) {
+        // don't automatically delete these, eg, PRs that were created
+        // during the scan would end up here.
+        console.log(`  Should delete "${id}" (PR #???)`);
+      } else if (info.state !== "OPEN") {
+        await deleteObject(id);
+      }
     }
   }
   if (failures.length) {