diff --git a/packages/mergebot/package.json b/packages/mergebot/package.json
index 1d952778f4..8a421523b1 100644
--- a/packages/mergebot/package.json
+++ b/packages/mergebot/package.json
@@ -28,6 +28,7 @@
     "fast-json-patch": "^3.1.1",
     "graphql": "15.8.0",
     "prettyjson": "^1.2.5",
+    "source-map-support": "^0.5.21",
     "yargs": "^17.7.2"
   },
   "devDependencies": {
@@ -35,6 +36,7 @@
     "@octokit/webhooks-types": "^7.5.1",
     "@types/node": "^18.19.33",
     "@types/prettyjson": "^0.0.33",
+    "@types/source-map-support": "^0.5.10",
     "@types/yargs": "^17.0.32",
     "apollo": "^2.34.0",
     "azure-functions-core-tools": "^4.0.5700",
@@ -59,7 +61,7 @@
     "prestart": "pnpm run build",
     "prepublishOnly": "pnpm run build",
     "build": "tsc -b",
-    "bundle": "rimraf dist && esbuild --bundle --platform=node --format=cjs --target=node18 --external:@azure/functions-core --outfile=dist/functions/index.js src/functions/index.ts",
+    "bundle": "rimraf dist && esbuild --bundle --platform=node --format=cjs --target=node18 --external:@azure/functions-core --outfile=dist/functions/index.js --sourcemap src/functions/index.ts",
     "watch": "tsc --watch",
     "graphql-schema": "apollo client:codegen schema --target typescript --globalTypesFile=src/queries/schema/graphql-global-types.ts",
     "create-fixture": "pnpm run build && node dist/commands/create-fixture.js",
diff --git a/packages/mergebot/src/functions/index.ts b/packages/mergebot/src/functions/index.ts
index 39a94309b0..0c2c517701 100644
--- a/packages/mergebot/src/functions/index.ts
+++ b/packages/mergebot/src/functions/index.ts
@@ -1,3 +1,4 @@
+import "source-map-support/register";
 import "./api";
 import "./discussions-trigger";
 import "./httpTrigger";
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 624e622b59..50088b2ecd 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -321,6 +321,9 @@ importers:
       prettyjson:
         specifier: ^1.2.5
         version: 1.2.5
+      source-map-support:
+        specifier: ^0.5.21
+        version: 0.5.21
       yargs:
         specifier: ^17.7.2
         version: 17.7.2
@@ -337,6 +340,9 @@ importers:
       '@types/prettyjson':
         specifier: ^0.0.33
         version: 0.0.33
+      '@types/source-map-support':
+        specifier: ^0.5.10
+        version: 0.5.10
       '@types/yargs':
         specifier: ^17.0.32
         version: 17.0.32
@@ -2394,6 +2400,7 @@ packages:
   /@pkgjs/parseargs@0.11.0:
     resolution: {integrity: sha512-+1VkjdD0QBLPodGrJUeqarH8VAIvQODIbwh9XpP5Syisf7YoQgsJKPNFoqqLQlu+VQ/tVSshMR6loPMn8U+dPg==}
     engines: {node: '>=14'}
+    requiresBuild: true
 
   /@pnpm/constants@7.1.1:
     resolution: {integrity: sha512-31pZqMtjwV+Vaq7MaPrT1EoDFSYwye3dp6BiHIGRJmVThCQwySRKM7hCvqqI94epNkqFAAYoWrNynWoRYosGdw==}
@@ -2819,6 +2826,12 @@ packages:
   /@types/semver@7.5.6:
     resolution: {integrity: sha512-dn1l8LaMea/IjDoHNd9J52uBbInB796CDffS6VdIxvqYCPSG0V0DzHp76GpaWnlhg88uYyPbXCDIowa86ybd5A==}
 
+  /@types/source-map-support@0.5.10:
+    resolution: {integrity: sha512-tgVP2H469x9zq34Z0m/fgPewGhg/MLClalNOiPIzQlXrSS2YrKu/xCdSCKnEDwkFha51VKEKB6A9wW26/ZNwzA==}
+    dependencies:
+      source-map: 0.6.1
+    dev: true
+
   /@types/ssri@7.1.4:
     resolution: {integrity: sha512-K2Ys8+BVrgGFY0cVwf55rIS4fa2ZN+4Y/w2h4BnYIf8kvUdmdKT6l6VUpC3uL9HKG8I8EkD5CXIgRUXHOLHcLw==}
     dependencies:
@@ -10134,6 +10147,7 @@ packages:
 
   /wcwidth@1.0.1:
     resolution: {integrity: sha512-XHPEwS0q6TaxcvG85+8EYkbiCux2XtWG2mkc47Ng2A77BQu9+DqIOJldST4HgPkuea7dvKSj5VgX3P1d4rW8Tg==}
+    requiresBuild: true
     dependencies:
       defaults: 1.0.4
     dev: true