diff --git a/lib/data/replacements.json b/lib/data/replacements.json
index 43b800a2c84..26e905b2fe7 100644
--- a/lib/data/replacements.json
+++ b/lib/data/replacements.json
@@ -14,6 +14,7 @@
       "replacements:eslint-config-standard-with-typescript-to-eslint-config-love",
       "replacements:eslint-plugin-node-to-maintained-fork",
       "replacements:eslint-plugin-vitest-to-scoped",
+      "replacements:express-mung-to-express-response-middleware",
       "replacements:fakerjs-to-scoped",
       "replacements:fastify-to-scoped",
       "replacements:framer-motion-to-motion",
@@ -293,6 +294,18 @@
       }
     ]
   },
+  "express-mung-to-express-response-middleware": {
+    "description": "Replace stale `express-mung` with a maintained fork: `express-response-middleware`.",
+    "packageRules": [
+      {
+        "matchCurrentVersion": ">=0.0.0",
+        "matchDatasources": ["npm"],
+        "matchPackageNames": ["express-mung"],
+        "replacementName": "express-response-middleware",
+        "replacementVersion": "1.0.0"
+      }
+    ]
+  },
   "fakerjs-to-scoped": {
     "description": "`fakerjs` packages became scoped.",
     "packageRules": [