diff --git a/.changeset/dry-berries-mate.md b/.changeset/dry-berries-mate.md
new file mode 100644
index 000000000000..fd0ac1ba6aff
--- /dev/null
+++ b/.changeset/dry-berries-mate.md
@@ -0,0 +1,5 @@
+---
+"miniflare": minor
+---
+
+chore: bump `workerd` to [`1.20240223.1`](https://github.com/cloudflare/workerd/releases/tag/v1.20240223.0)
diff --git a/packages/miniflare/package.json b/packages/miniflare/package.json
index 0f935d1f42be..1cda84aeb4b6 100644
--- a/packages/miniflare/package.json
+++ b/packages/miniflare/package.json
@@ -49,7 +49,7 @@
 		"glob-to-regexp": "^0.4.1",
 		"stoppable": "^1.1.0",
 		"undici": "^5.28.2",
-		"workerd": "1.20240208.0",
+		"workerd": "1.20240223.1",
 		"ws": "^8.11.0",
 		"youch": "^3.2.2",
 		"zod": "^3.20.6"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 3465dc5795ea..a455533fdfde 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -946,8 +946,8 @@ importers:
         specifier: ^5.28.2
         version: 5.28.3
       workerd:
-        specifier: 1.20240208.0
-        version: 1.20240208.0
+        specifier: 1.20240223.1
+        version: 1.20240223.1
       ws:
         specifier: ^8.11.0
         version: 8.14.2
@@ -4066,8 +4066,8 @@ packages:
       marked: 0.3.19
     dev: false
 
-  /@cloudflare/workerd-darwin-64@1.20240208.0:
-    resolution: {integrity: sha512-64qjsCUz6VtjXnUex5D6dWoJDuUBRw1ps2TEVH9wGJ4ubiLVUxKhj3bzkVy0RoJ8FhaCKzJWWRyTo4yc192UTA==}
+  /@cloudflare/workerd-darwin-64@1.20240223.1:
+    resolution: {integrity: sha512-GgHnvkazLFZ7bmR96+dTX0+WS13a+5CHOOP3qNUSR9oEnR4hHzpNIO75MuZsm9RPAXrvtT7nSJmYwiGCZXh6og==}
     engines: {node: '>=16'}
     cpu: [x64]
     os: [darwin]
@@ -4075,8 +4075,8 @@ packages:
     dev: false
     optional: true
 
-  /@cloudflare/workerd-darwin-arm64@1.20240208.0:
-    resolution: {integrity: sha512-eVQrAV200LhwLY6JZLx3l2lDrjsTC86lqnvH+RSeM43bAcdneC6lVfykHnTaOTgYFvYQbqRkn9ICWxXj1V9L5g==}
+  /@cloudflare/workerd-darwin-arm64@1.20240223.1:
+    resolution: {integrity: sha512-ZF98vUmVlC0EVEd3RRuhMq4HYWFcqmPtMIMPUN2+ivEHR92TE+6E/AvdeE6wcE7fKHQ+fk3dH+ZgB0GcfptfnA==}
     engines: {node: '>=16'}
     cpu: [arm64]
     os: [darwin]
@@ -4084,8 +4084,8 @@ packages:
     dev: false
     optional: true
 
-  /@cloudflare/workerd-linux-64@1.20240208.0:
-    resolution: {integrity: sha512-ivZ2UuCvi44j8JZ++XlQzSYajt5ptvAdwlh3WPpCcygtHXEh6SVo8QXEUOXhPbv861C0HZMYxLCaLqlpQDWB8g==}
+  /@cloudflare/workerd-linux-64@1.20240223.1:
+    resolution: {integrity: sha512-1kH41ewNTGMmAk2zUX0Xj9VSfidl26GQ0ZrWMdi5kwf6gAHd3oVWNigJN078Jx56SgQxNcqVGX1LunqF949asw==}
     engines: {node: '>=16'}
     cpu: [x64]
     os: [linux]
@@ -4093,8 +4093,8 @@ packages:
     dev: false
     optional: true
 
-  /@cloudflare/workerd-linux-arm64@1.20240208.0:
-    resolution: {integrity: sha512-aLfvl9kXQKbM7aLvfL0HbOt5VEgv15mEZGyFKyDldJ8+nOXH6nYPma1ccwF8BHmu8otHc420eyPr2xPKhLSJnw==}
+  /@cloudflare/workerd-linux-arm64@1.20240223.1:
+    resolution: {integrity: sha512-Ro8Og5C4evh890JrRm0B8sHyumRtgL+mUqPeNcEsyG45jAQy5xHpapHnmJAMJV6ah+zDc1cZtQq+en39SojXvQ==}
     engines: {node: '>=16'}
     cpu: [arm64]
     os: [linux]
@@ -4102,8 +4102,8 @@ packages:
     dev: false
     optional: true
 
-  /@cloudflare/workerd-windows-64@1.20240208.0:
-    resolution: {integrity: sha512-Y6KMukWnorsSmPx6d82IuJ4SU8sX1+2y+w1uFJ76sucSgXqUAN1fmjG+EyzRVbcbsxRGBCD9c1Pn8T1amMLEYA==}
+  /@cloudflare/workerd-windows-64@1.20240223.1:
+    resolution: {integrity: sha512-eNP5sfaP6WL07DaoigYou5ASPF7jHsFiNzzD2vGOI7yFd5sPlb7sJ4SpIy+BCX0LdqFnjmlUo5Xr+/I6qJ2Nww==}
     engines: {node: '>=16'}
     cpu: [x64]
     os: [win32]
@@ -20566,17 +20566,17 @@ packages:
     resolution: {integrity: sha512-gvVzJFlPycKc5dZN4yPkP8w7Dc37BtP1yczEneOb4uq34pXZcvrtRTmWV8W+Ume+XCxKgbjM+nevkyFPMybd4Q==}
     dev: true
 
-  /workerd@1.20240208.0:
-    resolution: {integrity: sha512-edFdwHU95Ww2SmjBvBJhbc7hhVXMEo6Y7qqSWCl6W9lGScTlCMCXd4AU3f/EGJ3P++FC+CWqu+XuAywebbKF2Q==}
+  /workerd@1.20240223.1:
+    resolution: {integrity: sha512-Mo1fwdp6DLva4/fWdL09ZdYllkO45I4YpWG5PbF/YUGFlu2aMk24fmU6Pd6fo5/cWek4F+n3LmYEKKHfqjiJIA==}
     engines: {node: '>=16'}
     hasBin: true
     requiresBuild: true
     optionalDependencies:
-      '@cloudflare/workerd-darwin-64': 1.20240208.0
-      '@cloudflare/workerd-darwin-arm64': 1.20240208.0
-      '@cloudflare/workerd-linux-64': 1.20240208.0
-      '@cloudflare/workerd-linux-arm64': 1.20240208.0
-      '@cloudflare/workerd-windows-64': 1.20240208.0
+      '@cloudflare/workerd-darwin-64': 1.20240223.1
+      '@cloudflare/workerd-darwin-arm64': 1.20240223.1
+      '@cloudflare/workerd-linux-64': 1.20240223.1
+      '@cloudflare/workerd-linux-arm64': 1.20240223.1
+      '@cloudflare/workerd-windows-64': 1.20240223.1
     dev: false
 
   /wrap-ansi@6.2.0: