diff --git a/package-lock.json b/package-lock.json
index 37cac47..5a89dbf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,6 @@
         "@leafac/sqlite": "^1.1.2",
         "@leafac/sqlite-migration": "^1.0.3",
         "crypto-random-string": "^3.3.1",
-        "escape-string-regexp": "^4.0.0",
         "express": "^4.17.1",
         "fs-extra": "^9.1.0",
         "mailparser": "^3.1.0",
@@ -2973,17 +2972,6 @@
       "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
       "integrity": "sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg="
     },
-    "node_modules/escape-string-regexp": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-4.0.0.tgz",
-      "integrity": "sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA==",
-      "engines": {
-        "node": ">=10"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
-    },
     "node_modules/escodegen": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/escodegen/-/escodegen-2.0.0.tgz",
@@ -11407,11 +11395,6 @@
       "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
       "integrity": "sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg="
     },
-    "escape-string-regexp": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-4.0.0.tgz",
-      "integrity": "sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA=="
-    },
     "escodegen": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/escodegen/-/escodegen-2.0.0.tgz",
diff --git a/package.json b/package.json
index 2e8adce..7d72534 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,6 @@
     "@leafac/sqlite": "^1.1.2",
     "@leafac/sqlite-migration": "^1.0.3",
     "crypto-random-string": "^3.3.1",
-    "escape-string-regexp": "^4.0.0",
     "express": "^4.17.1",
     "fs-extra": "^9.1.0",
     "mailparser": "^3.1.0",
diff --git a/src/index.ts b/src/index.ts
index 793d0a7..9062472 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -4,7 +4,6 @@ import path from "path";
 import express from "express";
 import { SMTPServer } from "smtp-server";
 import mailparser from "mailparser";
-import escapeStringRegexp from "escape-string-regexp";
 import fs from "fs-extra";
 import cryptoRandomString from "crypto-random-string";
 import { html, HTML } from "@leafac/html";
@@ -48,6 +47,12 @@ export default function killTheNewsletter(
         "author" TEXT NOT NULL,
         "content" TEXT NOT NULL
       );
+
+      CREATE TRIGGER "feedsUpdatedAt"
+      AFTER INSERT ON "entries"
+      BEGIN
+        UPDATE "feeds" SET "updatedAt" = datetime('now') WHERE "id" = "NEW"."feed";
+      END;
     `,
   ]);
 
@@ -458,12 +463,7 @@ export default function killTheNewsletter(
               )
             `
           );
-          // TODO: Do this with a trigger.
-          database.run(
-            sql`UPDATE "feeds" SET "updatedAt" = datetime('now') WHERE "id" = ${feed.id}`
-          );
-
-          while (renderFeed(feedReference)!.length > 500_00)
+          while (renderFeed(feedReference)!.length > 500_000)
             database.run(
               sql`DELETE FROM "entries" WHERE "feed" = ${feed.id} ORDER BY "createdAt" ASC LIMIT 1`
             );