diff --git a/.changeset/violet-jars-visit.md b/.changeset/violet-jars-visit.md
new file mode 100644
index 000000000000..47f752d5333d
--- /dev/null
+++ b/.changeset/violet-jars-visit.md
@@ -0,0 +1,5 @@
+---
+'@sveltejs/kit': patch
+---
+
+[chore] upgrade to Undici 5.7.0
diff --git a/packages/kit/package.json b/packages/kit/package.json
index 8003ce06503e..89e25b050a7b 100644
--- a/packages/kit/package.json
+++ b/packages/kit/package.json
@@ -42,7 +42,7 @@
 		"svelte2tsx": "~0.5.10",
 		"tiny-glob": "^0.2.9",
 		"typescript": "^4.7.4",
-		"undici": "^5.6.1",
+		"undici": "5.7.0",
 		"uvu": "^0.5.3",
 		"vite": "^3.0.0"
 	},
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index a62e86a8a81f..2623e7964631 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -298,7 +298,7 @@ importers:
       svelte2tsx: ~0.5.10
       tiny-glob: ^0.2.9
       typescript: ^4.7.4
-      undici: ^5.6.1
+      undici: 5.7.0
       uvu: ^0.5.3
       vite: ^3.0.0
     dependencies:
@@ -333,7 +333,7 @@ importers:
       svelte2tsx: 0.5.11_lvfi2wesz6u4l5rfbnetbucfmm
       tiny-glob: 0.2.9
       typescript: 4.7.4
-      undici: 5.6.1
+      undici: 5.7.0
       uvu: 0.5.4
       vite: 3.0.0
 
@@ -4405,8 +4405,8 @@ packages:
       which-boxed-primitive: 1.0.2
     dev: true
 
-  /undici/5.6.1:
-    resolution: {integrity: sha512-yYVqywdCbNb99f/w045wqmv++WExXDjY0FEvLSB7QUZZH6izxrVkF4dJn1aimcvN0+WAhv75Gg7v6VJoqmRtJQ==}
+  /undici/5.7.0:
+    resolution: {integrity: sha512-ORgxwDkiPS+gK2VxE7iyVeR7JliVn5DqhZ4LgQqYLBXsuK+lwOEmnJ66dhvlpLM0tC3fC7eYF1Bti2frbw2eAA==}
     engines: {node: '>=12.18'}
     dev: true