diff --git a/dockerfiles/Dockerfile.node b/dockerfiles/Dockerfile.node
index 7ebc84a11b..fefd5d3f34 100644
--- a/dockerfiles/Dockerfile.node
+++ b/dockerfiles/Dockerfile.node
@@ -19,6 +19,7 @@ RUN npm run build
 
 RUN npm pack --verbose packages/core/
 RUN npm pack --verbose packages/node/
+RUN npm pack --verbose packages/path-normalizer/
 RUN npm pack --verbose packages/plugin-express/
 RUN npm pack --verbose packages/plugin-koa/
 RUN npm pack --verbose packages/plugin-restify/
diff --git a/package-lock.json b/package-lock.json
index f3ba5beede..f656df16d9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2494,6 +2494,10 @@
       "resolved": "packages/node",
       "link": true
     },
+    "node_modules/@bugsnag/path-normalizer": {
+      "resolved": "packages/path-normalizer",
+      "link": true
+    },
     "node_modules/@bugsnag/plugin-angular": {
       "resolved": "packages/plugin-angular",
       "link": true
@@ -45093,6 +45097,7 @@
         "@bugsnag/delivery-electron": "^8.4.0",
         "@bugsnag/electron-filestore": "^8.0.0",
         "@bugsnag/electron-network-status": "^8.4.0",
+        "@bugsnag/path-normalizer": "^8.4.0",
         "@bugsnag/plugin-console-breadcrumbs": "^8.4.0",
         "@bugsnag/plugin-electron-app": "^8.4.0",
         "@bugsnag/plugin-electron-app-breadcrumbs": "^8.4.0",
@@ -45200,6 +45205,53 @@
         "@types/node": "^18.19.74"
       }
     },
+    "packages/path-normalizer": {
+      "name": "@bugsnag/path-normalizer",
+      "version": "8.4.0",
+      "license": "MIT",
+      "devDependencies": {
+        "@rollup/plugin-commonjs": "^28.0.2",
+        "@rollup/plugin-node-resolve": "^16.0.0",
+        "@rollup/plugin-typescript": "^12.1.2",
+        "rollup": "^4.24.0",
+        "typescript": "^5.7.2"
+      }
+    },
+    "packages/path-normalizer/node_modules/@rollup/plugin-node-resolve": {
+      "version": "16.0.1",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-node-resolve/-/plugin-node-resolve-16.0.1.tgz",
+      "integrity": "sha512-tk5YCxJWIG81umIvNkSod2qK5KyQW19qcBF/B78n1bjtOON6gzKoVeSzAE8yHCZEDmqkHKkxplExA8KzdJLJpA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@rollup/pluginutils": "^5.0.1",
+        "@types/resolve": "1.20.2",
+        "deepmerge": "^4.2.2",
+        "is-module": "^1.0.0",
+        "resolve": "^1.22.1"
+      },
+      "engines": {
+        "node": ">=14.0.0"
+      },
+      "peerDependencies": {
+        "rollup": "^2.78.0||^3.0.0||^4.0.0"
+      },
+      "peerDependenciesMeta": {
+        "rollup": {
+          "optional": true
+        }
+      }
+    },
+    "packages/path-normalizer/node_modules/deepmerge": {
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.3.1.tgz",
+      "integrity": "sha512-3sUqbMEc77XqpdNO7FRyRog+eW3ph+GYCbj+rK+uYyRMuwsVy0rMiVtPn+QJlKFvWP/1PYpapqYn0Me2knFn+A==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "packages/plugin-angular": {
       "name": "@bugsnag/plugin-angular",
       "version": "8.4.0",
@@ -48984,12 +49036,11 @@
       "name": "@bugsnag/plugin-electron-preload-error",
       "version": "8.4.0",
       "license": "MIT",
+      "dependencies": {
+        "@bugsnag/path-normalizer": "^8.4.0"
+      },
       "devDependencies": {
-        "@bugsnag/core": "^8.4.0",
         "@bugsnag/electron-test-helpers": "^8.4.0"
-      },
-      "peerDependencies": {
-        "@bugsnag/core": "^8.0.0"
       }
     },
     "packages/plugin-electron-process-info": {
@@ -49196,11 +49247,8 @@
       "name": "@bugsnag/plugin-node-in-project",
       "version": "8.4.0",
       "license": "MIT",
-      "devDependencies": {
-        "@bugsnag/core": "^8.4.0"
-      },
-      "peerDependencies": {
-        "@bugsnag/core": "^8.0.0"
+      "dependencies": {
+        "@bugsnag/path-normalizer": "^8.4.0"
       }
     },
     "packages/plugin-node-surrounding-code": {
@@ -49431,11 +49479,8 @@
       "name": "@bugsnag/plugin-strip-project-root",
       "version": "8.4.0",
       "license": "MIT",
-      "devDependencies": {
-        "@bugsnag/core": "^8.4.0"
-      },
-      "peerDependencies": {
-        "@bugsnag/core": "^8.0.0"
+      "dependencies": {
+        "@bugsnag/path-normalizer": "^8.4.0"
       }
     },
     "packages/plugin-strip-query-string": {
@@ -52099,6 +52144,7 @@
         "@bugsnag/delivery-electron": "^8.4.0",
         "@bugsnag/electron-filestore": "^8.0.0",
         "@bugsnag/electron-network-status": "^8.4.0",
+        "@bugsnag/path-normalizer": "^8.4.0",
         "@bugsnag/plugin-console-breadcrumbs": "^8.4.0",
         "@bugsnag/plugin-electron-app": "^8.4.0",
         "@bugsnag/plugin-electron-app-breadcrumbs": "^8.4.0",
@@ -52182,6 +52228,37 @@
         "stack-generator": "^2.0.3"
       }
     },
+    "@bugsnag/path-normalizer": {
+      "version": "file:packages/path-normalizer",
+      "requires": {
+        "@rollup/plugin-commonjs": "^28.0.2",
+        "@rollup/plugin-node-resolve": "^16.0.0",
+        "@rollup/plugin-typescript": "^12.1.2",
+        "rollup": "^4.24.0",
+        "typescript": "^5.7.2"
+      },
+      "dependencies": {
+        "@rollup/plugin-node-resolve": {
+          "version": "16.0.1",
+          "resolved": "https://registry.npmjs.org/@rollup/plugin-node-resolve/-/plugin-node-resolve-16.0.1.tgz",
+          "integrity": "sha512-tk5YCxJWIG81umIvNkSod2qK5KyQW19qcBF/B78n1bjtOON6gzKoVeSzAE8yHCZEDmqkHKkxplExA8KzdJLJpA==",
+          "dev": true,
+          "requires": {
+            "@rollup/pluginutils": "^5.0.1",
+            "@types/resolve": "1.20.2",
+            "deepmerge": "^4.2.2",
+            "is-module": "^1.0.0",
+            "resolve": "^1.22.1"
+          }
+        },
+        "deepmerge": {
+          "version": "4.3.1",
+          "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.3.1.tgz",
+          "integrity": "sha512-3sUqbMEc77XqpdNO7FRyRog+eW3ph+GYCbj+rK+uYyRMuwsVy0rMiVtPn+QJlKFvWP/1PYpapqYn0Me2knFn+A==",
+          "dev": true
+        }
+      }
+    },
     "@bugsnag/plugin-angular": {
       "version": "file:packages/plugin-angular",
       "requires": {
@@ -54528,8 +54605,8 @@
     "@bugsnag/plugin-electron-preload-error": {
       "version": "file:packages/plugin-electron-preload-error",
       "requires": {
-        "@bugsnag/core": "^8.4.0",
-        "@bugsnag/electron-test-helpers": "^8.4.0"
+        "@bugsnag/electron-test-helpers": "^8.4.0",
+        "@bugsnag/path-normalizer": "^8.4.0"
       }
     },
     "@bugsnag/plugin-electron-process-info": {
@@ -54649,7 +54726,7 @@
     "@bugsnag/plugin-node-in-project": {
       "version": "file:packages/plugin-node-in-project",
       "requires": {
-        "@bugsnag/core": "^8.4.0"
+        "@bugsnag/path-normalizer": "^8.4.0"
       }
     },
     "@bugsnag/plugin-node-surrounding-code": {
@@ -54773,7 +54850,7 @@
     "@bugsnag/plugin-strip-project-root": {
       "version": "file:packages/plugin-strip-project-root",
       "requires": {
-        "@bugsnag/core": "^8.4.0"
+        "@bugsnag/path-normalizer": "^8.4.0"
       }
     },
     "@bugsnag/plugin-strip-query-string": {
diff --git a/packages/core/package.json b/packages/core/package.json
index 59c1a89766..dc6ad016e6 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -10,8 +10,7 @@
       "default": "./dist/index.cjs"
     },
     "./lib/es-utils/assign": "./src/lib/es-utils/assign.js",
-    "./lib/es-utils/includes": "./src/lib/es-utils/includes.js",
-    "./lib/path-normalizer": "./src/lib/path-normalizer.js"
+    "./lib/es-utils/includes": "./src/lib/es-utils/includes.js"
   },
   "description": "Core classes and utilities for Bugsnag notifiers",
   "homepage": "https://www.bugsnag.com/",
diff --git a/packages/core/src/index.ts b/packages/core/src/index.ts
index 1f281b4b4a..e71d74836a 100644
--- a/packages/core/src/index.ts
+++ b/packages/core/src/index.ts
@@ -12,7 +12,7 @@ export { default as extractObject } from './lib/extract-object'
 export { default as intRange } from './lib/validators/int-range'
 export { default as isError } from './lib/iserror'
 export { default as listOfFunctions } from './lib/validators/list-of-functions'
-export { default as runCallbacks } from "./lib/callback-runner";
+export { default as runCallbacks } from './lib/callback-runner'
 export { default as runSyncCallbacks } from './lib/sync-callback-runner'
 export { default as stringWithLength } from './lib/validators/string-with-length'
 
diff --git a/packages/electron/package.json b/packages/electron/package.json
index 06184aeccc..c2a772a2d3 100644
--- a/packages/electron/package.json
+++ b/packages/electron/package.json
@@ -25,6 +25,7 @@
     "@bugsnag/delivery-electron": "^8.4.0",
     "@bugsnag/electron-filestore": "^8.0.0",
     "@bugsnag/electron-network-status": "^8.4.0",
+    "@bugsnag/path-normalizer": "^8.4.0",
     "@bugsnag/plugin-console-breadcrumbs": "^8.4.0",
     "@bugsnag/plugin-electron-app": "^8.4.0",
     "@bugsnag/plugin-electron-app-breadcrumbs": "^8.4.0",
diff --git a/packages/electron/src/client/main.js b/packages/electron/src/client/main.js
index 01c78376f9..39229656cf 100644
--- a/packages/electron/src/client/main.js
+++ b/packages/electron/src/client/main.js
@@ -29,7 +29,7 @@ const createMainClient = (opts) => {
   // Normalise the project root upfront so renderers have a fully resolved path
   // The renderers can't do this themselves as they cannot access the 'path' module
   if (opts.projectRoot) {
-    const normalizePath = require('@bugsnag/core/lib/path-normalizer')
+    const normalizePath = require('@bugsnag/path-normalizer')
     opts.projectRoot = normalizePath(opts.projectRoot)
   }
 
diff --git a/packages/electron/src/config/main.js b/packages/electron/src/config/main.js
index 45f96a2c51..7cbcd56942 100644
--- a/packages/electron/src/config/main.js
+++ b/packages/electron/src/config/main.js
@@ -2,7 +2,7 @@ const { schema } = require('./common')
 const { listOfFunctions, stringWithLength } = require('@bugsnag/core')
 const { inspect } = require('util')
 const { app } = require('electron')
-const normalizePath = require('@bugsnag/core/lib/path-normalizer')
+const normalizePath = require('@bugsnag/path-normalizer')
 
 module.exports.schema = {
   ...schema,
diff --git a/packages/path-normalizer/LICENSE.txt b/packages/path-normalizer/LICENSE.txt
new file mode 100644
index 0000000000..3596c5b072
--- /dev/null
+++ b/packages/path-normalizer/LICENSE.txt
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2017 Bugsnag
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/packages/path-normalizer/README.md b/packages/path-normalizer/README.md
new file mode 100644
index 0000000000..2f4fc79bc0
--- /dev/null
+++ b/packages/path-normalizer/README.md
@@ -0,0 +1,23 @@
+# @bugsnag/path-normalizer
+
+A utility for normalizing file paths by making them absolute and adding trailing slashes for directories.
+
+## Installation
+
+```bash
+npm install @bugsnag/path-normalizer
+```
+
+## Usage
+
+```javascript
+const normalizePath = require('@bugsnag/path-normalizer')
+
+// Normalize a path
+const normalizedPath = normalizePath('./some/relative/path')
+// Returns: '/absolute/path/to/some/relative/path/'
+```
+
+## License
+
+MIT
diff --git a/packages/path-normalizer/package.json b/packages/path-normalizer/package.json
new file mode 100644
index 0000000000..89cdc8eb74
--- /dev/null
+++ b/packages/path-normalizer/package.json
@@ -0,0 +1,38 @@
+{
+  "name": "@bugsnag/path-normalizer",
+  "version": "8.4.0",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.mjs",
+      "default": "./dist/index.js"
+    }
+  },
+  "description": "Path normalization utility for Bugsnag",
+  "homepage": "https://www.bugsnag.com/",
+  "repository": {
+    "type": "git",
+    "url": "git@github.com:bugsnag/bugsnag-js.git"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "files": [
+    "dist"
+  ],
+  "scripts": {
+    "build": "rollup --config rollup.config.js",
+    "test:types": "tsc -p tsconfig.json"
+  },
+  "author": "Bugsnag",
+  "license": "MIT",
+  "devDependencies": {
+    "@rollup/plugin-commonjs": "^28.0.2",
+    "@rollup/plugin-node-resolve": "^16.0.0",
+    "@rollup/plugin-typescript": "^12.1.2",
+    "rollup": "^4.24.0",
+    "typescript": "^5.7.2"
+  }
+}
diff --git a/packages/path-normalizer/rollup.config.js b/packages/path-normalizer/rollup.config.js
new file mode 100644
index 0000000000..05d336978d
--- /dev/null
+++ b/packages/path-normalizer/rollup.config.js
@@ -0,0 +1,47 @@
+/* eslint-env node */
+/* global require, module */
+const { nodeResolve } = require('@rollup/plugin-node-resolve')
+const commonjs = require('@rollup/plugin-commonjs')
+const typescript = require('@rollup/plugin-typescript')
+
+module.exports = [
+  // CommonJS build
+  {
+    input: 'src/index.ts',
+    output: {
+      file: 'dist/index.js',
+      format: 'cjs',
+      exports: 'default'
+    },
+    plugins: [
+      nodeResolve({
+        preferBuiltins: true
+      }),
+      commonjs(),
+      typescript({
+        declaration: true,
+        declarationDir: 'dist',
+        rootDir: 'src'
+      })
+    ],
+    external: ['path']
+  },
+  // ES Module build
+  {
+    input: 'src/index.ts',
+    output: {
+      file: 'dist/index.mjs',
+      format: 'es'
+    },
+    plugins: [
+      nodeResolve({
+        preferBuiltins: true
+      }),
+      commonjs(),
+      typescript({
+        declaration: false
+      })
+    ],
+    external: ['path']
+  }
+]
diff --git a/packages/core/src/lib/path-normalizer.js b/packages/path-normalizer/src/index.ts
similarity index 55%
rename from packages/core/src/lib/path-normalizer.js
rename to packages/path-normalizer/src/index.ts
index fc5c75bf41..592c74c106 100644
--- a/packages/core/src/lib/path-normalizer.js
+++ b/packages/path-normalizer/src/index.ts
@@ -1,5 +1,7 @@
-const { join, resolve } = require('path')
+import { join, resolve } from 'path'
 
 // normalise a path to a directory, adding a trailing slash if it doesn't already
 // have one and resolve it to make it absolute (e.g. get rid of any ".."s)
-module.exports = p => join(resolve(p), '/')
+const normalizePath = (p: string) => join(resolve(p), '/')
+
+export default normalizePath
diff --git a/packages/path-normalizer/tsconfig.json b/packages/path-normalizer/tsconfig.json
new file mode 100644
index 0000000000..918896fa6f
--- /dev/null
+++ b/packages/path-normalizer/tsconfig.json
@@ -0,0 +1,8 @@
+{
+  "extends": "../../tsconfig.json",
+  "include": ["."],
+  "compilerOptions": {
+    "lib": ["es2017"],
+    "types": ["node"]
+  }
+}
diff --git a/packages/plugin-electron-preload-error/package.json b/packages/plugin-electron-preload-error/package.json
index ddf44e43a5..ef8a2501f0 100644
--- a/packages/plugin-electron-preload-error/package.json
+++ b/packages/plugin-electron-preload-error/package.json
@@ -15,11 +15,10 @@
     "preload-error.js"
   ],
   "devDependencies": {
-    "@bugsnag/core": "^8.4.0",
     "@bugsnag/electron-test-helpers": "^8.4.0"
   },
-  "peerDependencies": {
-    "@bugsnag/core": "^8.0.0"
+  "dependencies": {
+    "@bugsnag/path-normalizer": "^8.4.0"
   },
   "author": "Bugsnag",
   "license": "MIT"
diff --git a/packages/plugin-electron-preload-error/preload-error.js b/packages/plugin-electron-preload-error/preload-error.js
index a39aaf63db..f8027824f8 100644
--- a/packages/plugin-electron-preload-error/preload-error.js
+++ b/packages/plugin-electron-preload-error/preload-error.js
@@ -1,4 +1,4 @@
-const normalizePath = require('@bugsnag/core/lib/path-normalizer')
+const normalizePath = require('@bugsnag/path-normalizer')
 
 const handledState = {
   severity: 'error',
diff --git a/packages/plugin-node-in-project/in-project.js b/packages/plugin-node-in-project/in-project.js
index d9012bde7a..f056ea5b2f 100644
--- a/packages/plugin-node-in-project/in-project.js
+++ b/packages/plugin-node-in-project/in-project.js
@@ -1,4 +1,4 @@
-const normalizePath = require('@bugsnag/core/lib/path-normalizer')
+const normalizePath = require('@bugsnag/path-normalizer')
 
 module.exports = {
   load: client => client.addOnError(event => {
diff --git a/packages/plugin-node-in-project/package.json b/packages/plugin-node-in-project/package.json
index 865a7af0fe..717c9de9a9 100644
--- a/packages/plugin-node-in-project/package.json
+++ b/packages/plugin-node-in-project/package.json
@@ -17,10 +17,7 @@
   "scripts": {},
   "author": "Bugsnag",
   "license": "MIT",
-  "devDependencies": {
-    "@bugsnag/core": "^8.4.0"
-  },
-  "peerDependencies": {
-    "@bugsnag/core": "^8.0.0"
+  "dependencies": {
+    "@bugsnag/path-normalizer": "^8.4.0"
   }
 }
diff --git a/packages/plugin-strip-project-root/package.json b/packages/plugin-strip-project-root/package.json
index d1db090fe8..4c8b68b64c 100644
--- a/packages/plugin-strip-project-root/package.json
+++ b/packages/plugin-strip-project-root/package.json
@@ -16,10 +16,7 @@
   ],
   "author": "Bugsnag",
   "license": "MIT",
-  "devDependencies": {
-    "@bugsnag/core": "^8.4.0"
-  },
-  "peerDependencies": {
-    "@bugsnag/core": "^8.0.0"
+  "dependencies": {
+    "@bugsnag/path-normalizer": "^8.4.0"
   }
 }
diff --git a/packages/plugin-strip-project-root/strip-project-root.js b/packages/plugin-strip-project-root/strip-project-root.js
index b9515b8975..edc0671d11 100644
--- a/packages/plugin-strip-project-root/strip-project-root.js
+++ b/packages/plugin-strip-project-root/strip-project-root.js
@@ -1,4 +1,4 @@
-const normalizePath = require('@bugsnag/core/lib/path-normalizer')
+const normalizePath = require('@bugsnag/path-normalizer')
 
 module.exports = {
   load: client => client.addOnError(event => {
diff --git a/test/aws-lambda/features/fixtures/hono-app/app/package.json b/test/aws-lambda/features/fixtures/hono-app/app/package.json
index 4ce62b5cbe..02d96c8f89 100644
--- a/test/aws-lambda/features/fixtures/hono-app/app/package.json
+++ b/test/aws-lambda/features/fixtures/hono-app/app/package.json
@@ -8,6 +8,7 @@
       "@bugsnag/in-flight": "bugsnag-in-flight.tgz",
       "@bugsnag/js": "bugsnag-js.tgz",
       "@bugsnag/node": "bugsnag-node.tgz",
+      "@bugsnag/path-normalizer": "bugsnag-path-normalizer.tgz",
       "@bugsnag/plugin-app-duration": "bugsnag-plugin-app-duration.tgz",
       "@bugsnag/plugin-aws-lambda": "bugsnag-plugin-aws-lambda.tgz",
       "@bugsnag/plugin-contextualize": "bugsnag-plugin-contextualize.tgz",
diff --git a/test/aws-lambda/features/fixtures/serverless-express-app/app/package.json b/test/aws-lambda/features/fixtures/serverless-express-app/app/package.json
index 77b6671142..686a7e5458 100644
--- a/test/aws-lambda/features/fixtures/serverless-express-app/app/package.json
+++ b/test/aws-lambda/features/fixtures/serverless-express-app/app/package.json
@@ -10,6 +10,7 @@
         "@bugsnag/in-flight": "bugsnag-in-flight.tgz",
         "@bugsnag/js": "bugsnag-js.tgz",
         "@bugsnag/node": "bugsnag-node.tgz",
+        "@bugsnag/path-normalizer": "bugsnag-path-normalizer.tgz",
         "@bugsnag/plugin-app-duration": "bugsnag-plugin-app-duration.tgz",
         "@bugsnag/plugin-aws-lambda": "bugsnag-plugin-aws-lambda.tgz",
         "@bugsnag/plugin-contextualize": "bugsnag-plugin-contextualize.tgz",
diff --git a/test/aws-lambda/features/fixtures/simple-app/async/package.json b/test/aws-lambda/features/fixtures/simple-app/async/package.json
index a5c32db16e..012ed4d7f7 100644
--- a/test/aws-lambda/features/fixtures/simple-app/async/package.json
+++ b/test/aws-lambda/features/fixtures/simple-app/async/package.json
@@ -8,6 +8,7 @@
     "@bugsnag/in-flight": "bugsnag-in-flight.tgz",
     "@bugsnag/js": "bugsnag-js.tgz",
     "@bugsnag/node": "bugsnag-node.tgz",
+    "@bugsnag/path-normalizer": "bugsnag-path-normalizer.tgz",
     "@bugsnag/plugin-app-duration": "bugsnag-plugin-app-duration.tgz",
     "@bugsnag/plugin-aws-lambda": "bugsnag-plugin-aws-lambda.tgz",
     "@bugsnag/plugin-contextualize": "bugsnag-plugin-contextualize.tgz",
diff --git a/test/aws-lambda/features/fixtures/simple-app/callback/package.json b/test/aws-lambda/features/fixtures/simple-app/callback/package.json
index a5c32db16e..012ed4d7f7 100644
--- a/test/aws-lambda/features/fixtures/simple-app/callback/package.json
+++ b/test/aws-lambda/features/fixtures/simple-app/callback/package.json
@@ -8,6 +8,7 @@
     "@bugsnag/in-flight": "bugsnag-in-flight.tgz",
     "@bugsnag/js": "bugsnag-js.tgz",
     "@bugsnag/node": "bugsnag-node.tgz",
+    "@bugsnag/path-normalizer": "bugsnag-path-normalizer.tgz",
     "@bugsnag/plugin-app-duration": "bugsnag-plugin-app-duration.tgz",
     "@bugsnag/plugin-aws-lambda": "bugsnag-plugin-aws-lambda.tgz",
     "@bugsnag/plugin-contextualize": "bugsnag-plugin-contextualize.tgz",
diff --git a/test/aws-lambda/features/scripts/build-fixtures b/test/aws-lambda/features/scripts/build-fixtures
index f23e64e577..4ee0f9686c 100755
--- a/test/aws-lambda/features/scripts/build-fixtures
+++ b/test/aws-lambda/features/scripts/build-fixtures
@@ -20,6 +20,7 @@ BUGSNAG_PACKAGES = [
   "in-flight",
   "js",
   "node",
+  "path-normalizer",
   "plugin-app-duration",
   "plugin-aws-lambda",
   "plugin-contextualize",
diff --git a/test/node/features/fixtures/hono/Dockerfile b/test/node/features/fixtures/hono/Dockerfile
index 7f1642beca..52436436b6 100644
--- a/test/node/features/fixtures/hono/Dockerfile
+++ b/test/node/features/fixtures/hono/Dockerfile
@@ -8,7 +8,7 @@ RUN npm install
 
 COPY . ./
 
-RUN npm install --no-package-lock --no-save bugsnag-core*.tgz bugsnag-node*.tgz bugsnag-plugin-hono*.tgz
+RUN npm install --no-package-lock --no-save bugsnag-core*.tgz bugsnag-node*.tgz bugsnag-path-normalizer*.tgz bugsnag-plugin-hono*.tgz
 
 ENV NODE_ENV production
 CMD node scenarios/app