diff --git a/.changeset/dirty-trees-kneel.md b/.changeset/dirty-trees-kneel.md
new file mode 100644
index 0000000000000..95d9705badd68
--- /dev/null
+++ b/.changeset/dirty-trees-kneel.md
@@ -0,0 +1,5 @@
+---
+'@eth-optimism/common-ts': patch
+---
+
+Minor update to BaseServiceV2 to keep the raw body around when requests are made.
diff --git a/packages/common-ts/src/base-service/base-service-v2.ts b/packages/common-ts/src/base-service/base-service-v2.ts
index ce9e5be7fbf9d..50a4c5755780b 100644
--- a/packages/common-ts/src/base-service/base-service-v2.ts
+++ b/packages/common-ts/src/base-service/base-service-v2.ts
@@ -386,9 +386,17 @@ export abstract class BaseServiceV2<
       const app = express()
 
       // Body parsing.
-      app.use(bodyParser.json())
       app.use(bodyParser.urlencoded({ extended: true }))
 
+      // Keep the raw body around in case the application needs it.
+      app.use(
+        bodyParser.json({
+          verify: (req, res, buf, encoding) => {
+            ;(req as any).rawBody = buf?.toString(encoding || 'utf8') || ''
+          },
+        })
+      )
+
       // Logging.
       app.use(
         morgan('short', {