diff --git a/README.md b/README.md
index dcda10d8..27d4f37d 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,21 @@ app.get('/', (c) => c.text('foo'))
 export default app
 ```
 
+## Deno
+
+```ts
+import { serve } from 'https://deno.land/std/http/server.ts'
+import { sentry } from 'https://deno.land/x/hono_sentry/mod.ts'
+import { Hono } from 'https://deno.land/x/hono/mod.ts'
+
+const app = new Hono()
+
+app.use('*', sentry())
+app.get('/', (c) => c.text('foo'))
+
+serve(app.fetch)
+```
+
 ## Author
 
 Yusuke Wada <https://github.com/yusukebe>
diff --git a/deno_dist/index.ts b/deno_dist/index.ts
index 4caeeee3..4fcf0fd1 100644
--- a/deno_dist/index.ts
+++ b/deno_dist/index.ts
@@ -1,19 +1,17 @@
 import type { Handler } from 'https://raw.githubusercontent.com/honojs/hono/v2.0.6/deno_dist/mod.ts'
-// import Toucan from '../node_modules/toucan-js/dist/index.d.ts'
+import * as Sentry from 'https://deno.land/x/sentry_deno/main.ts'
 
 export const sentry = (): Handler => {
   return async (c, next) => {
-    // const sentry = new Toucan({
-    //   dsn: c.env.SENTRY_DSN || || c.env.NEXT_PUBLIC_SENTRY_DSN,
-    //   request: c.req,
-    //   allowedHeaders: ['user-agent'],
-    //   allowedSearchParams: /(.*)/,
-    // })
-
-    // try {
-    await next()
-    // } catch (error) {
-    //   sentry.captureException(error)
-    // }
+    Sentry.init({
+      dsn: c.env.SENTRY_DSN || c.env.NEXT_PUBLIC_SENTRY_DSN,
+      tracesSampleRate: 1.0,
+    })
+    try {
+      await next()
+    } catch (error) {
+      Sentry.captureException(error)
+      throw error
+    }
   }
 }
diff --git a/src/index.ts b/src/index.ts
index 61ccc962..a62ee427 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -14,6 +14,7 @@ export const sentry = (): Handler => {
       await next()
     } catch (error) {
       sentry.captureException(error)
+      throw error
     }
   }
 }