diff --git a/.changeset/soft-plants-win.md b/.changeset/soft-plants-win.md
new file mode 100644
index 0000000..96eb645
--- /dev/null
+++ b/.changeset/soft-plants-win.md
@@ -0,0 +1,5 @@
+---
+'@cloudflare/containers': patch
+---
+
+Update container default `Env` to `Cloudflare.Env`
diff --git a/examples/fuse-on-r2/src/index.ts b/examples/fuse-on-r2/src/index.ts
index bec00ea..5cc12a9 100644
--- a/examples/fuse-on-r2/src/index.ts
+++ b/examples/fuse-on-r2/src/index.ts
@@ -1,12 +1,9 @@
 import { Container, getContainer } from '../../../src/index.js';
 
-interface Env {
-  FUSEDemo: DurableObjectNamespace<FUSEDemo>;
+interface Env extends Cloudflare.Env {
   AWS_ACCESS_KEY_ID: string;
   AWS_SECRET_ACCESS_KEY: string;
-  R2_BUCKET_NAME: string;
   R2_BUCKET_PREFIX: string;
-  R2_ACCOUNT_ID: string;
 }
 
 export class FUSEDemo extends Container<Env> {
diff --git a/src/lib/container.ts b/src/lib/container.ts
index d049dd5..89ba2a1 100644
--- a/src/lib/container.ts
+++ b/src/lib/container.ts
@@ -200,7 +200,7 @@ class ContainerState {
 // ===============================
 // ===============================
 
-export class Container<Env = unknown> extends DurableObject<Env> {
+export class Container<Env = Cloudflare.Env> extends DurableObject<Env> {
   // =========================
   //     Public Attributes
   // =========================