diff --git a/packages/actions/package.json b/packages/actions/package.json
index 12f30702a..43de7448d 100644
--- a/packages/actions/package.json
+++ b/packages/actions/package.json
@@ -50,7 +50,7 @@
 		"p-limit": "^6.2.0",
 		"p-queue": "^8.0.1",
 		"tslib": "^2.8.1",
-		"undici": "6.21.0"
+		"undici": "6.21.1"
 	},
 	"devDependencies": {
 		"@types/node": "^22.10.10",
diff --git a/packages/discord.js/package.json b/packages/discord.js/package.json
index 1609e6b13..50ee98c3f 100644
--- a/packages/discord.js/package.json
+++ b/packages/discord.js/package.json
@@ -77,7 +77,7 @@
     "fast-deep-equal": "3.1.3",
     "lodash.snakecase": "4.1.1",
     "tslib": "^2.8.1",
-    "undici": "6.21.0"
+    "undici": "6.21.1"
   },
   "devDependencies": {
     "@discordjs/api-extractor": "workspace:^",
diff --git a/packages/proxy/package.json b/packages/proxy/package.json
index 4ed615c6b..3ac4fb49e 100644
--- a/packages/proxy/package.json
+++ b/packages/proxy/package.json
@@ -68,7 +68,7 @@
 		"@discordjs/rest": "workspace:^",
 		"@discordjs/util": "workspace:^",
 		"tslib": "^2.8.1",
-		"undici": "6.21.0"
+		"undici": "6.21.1"
 	},
 	"devDependencies": {
 		"@discordjs/api-extractor": "workspace:^",
diff --git a/packages/rest/package.json b/packages/rest/package.json
index caf42e62f..3dbc05bb1 100644
--- a/packages/rest/package.json
+++ b/packages/rest/package.json
@@ -91,7 +91,7 @@
 		"discord-api-types": "^0.37.118",
 		"magic-bytes.js": "^1.10.0",
 		"tslib": "^2.8.1",
-		"undici": "6.21.0",
+		"undici": "6.21.1",
 		"uuid": "^11.0.3"
 	},
 	"devDependencies": {
diff --git a/packages/scripts/package.json b/packages/scripts/package.json
index bd6b6550e..5c3be4b36 100644
--- a/packages/scripts/package.json
+++ b/packages/scripts/package.json
@@ -69,7 +69,7 @@
 		"@vercel/postgres": "^0.9.0",
 		"commander": "^12.1.0",
 		"tslib": "^2.8.1",
-		"undici": "6.21.0",
+		"undici": "6.21.1",
 		"yaml": "^2.7.0"
 	},
 	"devDependencies": {
diff --git a/packages/ws/package.json b/packages/ws/package.json
index 9e7b4b7f0..47fc59308 100644
--- a/packages/ws/package.json
+++ b/packages/ws/package.json
@@ -99,7 +99,7 @@
 		"tsup": "^8.3.5",
 		"turbo": "^2.3.3",
 		"typescript": "~5.5.4",
-		"undici": "6.21.0",
+		"undici": "6.21.1",
 		"vitest": "^2.1.8",
 		"zlib-sync": "^0.1.9"
 	},
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index b648bdfd4..1999d3315 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -393,8 +393,8 @@ importers:
         specifier: ^2.8.1
         version: 2.8.1
       undici:
-        specifier: 6.21.0
-        version: 6.21.0
+        specifier: 6.21.1
+        version: 6.21.1
     devDependencies:
       '@types/node':
         specifier: ^22.10.10
@@ -932,8 +932,8 @@ importers:
         specifier: ^2.8.1
         version: 2.8.1
       undici:
-        specifier: 6.21.0
-        version: 6.21.0
+        specifier: 6.21.1
+        version: 6.21.1
     devDependencies:
       '@discordjs/api-extractor':
         specifier: workspace:^
@@ -1173,8 +1173,8 @@ importers:
         specifier: ^2.8.1
         version: 2.8.1
       undici:
-        specifier: 6.21.0
-        version: 6.21.0
+        specifier: 6.21.1
+        version: 6.21.1
     devDependencies:
       '@discordjs/api-extractor':
         specifier: workspace:^
@@ -1295,8 +1295,8 @@ importers:
         specifier: ^2.8.1
         version: 2.8.1
       undici:
-        specifier: 6.21.0
-        version: 6.21.0
+        specifier: 6.21.1
+        version: 6.21.1
       uuid:
         specifier: ^11.0.3
         version: 11.0.3
@@ -1377,8 +1377,8 @@ importers:
         specifier: ^2.8.1
         version: 2.8.1
       undici:
-        specifier: 6.21.0
-        version: 6.21.0
+        specifier: 6.21.1
+        version: 6.21.1
       yaml:
         specifier: ^2.7.0
         version: 2.7.0
@@ -1717,8 +1717,8 @@ importers:
         specifier: ~5.5.4
         version: 5.5.4
       undici:
-        specifier: 6.21.0
-        version: 6.21.0
+        specifier: 6.21.1
+        version: 6.21.1
       vitest:
         specifier: ^2.1.8
         version: 2.1.8(@edge-runtime/vm@3.2.0)(@types/node@22.10.10)(happy-dom@14.12.3)(terser@5.37.0)
@@ -12625,8 +12625,8 @@ packages:
     resolution: {integrity: sha512-72RFADWFqKmUb2hmmvNODKL3p9hcB6Gt2DOQMis1SEBaV6a4MH8soBvzg+95CYhCKPFedut2JY9bMfrDl9D23g==}
     engines: {node: '>=14.0'}
 
-  undici@6.21.0:
-    resolution: {integrity: sha512-BUgJXc752Kou3oOIuU1i+yZZypyZRqNPW0vqoMPl8VaoalSfeR0D8/t4iAS3yirs79SSMTxTag+ZC86uswv+Cw==}
+  undici@6.21.1:
+    resolution: {integrity: sha512-q/1rj5D0/zayJB2FraXdaWxbhWiNKDvu8naDT2dl1yTlvJp4BLtOcp2a5BvgGNQpYYJzau7tf1WgKv3b+7mqpQ==}
     engines: {node: '>=18.17'}
 
   unicode-trie@2.0.0:
@@ -17278,7 +17278,7 @@ snapshots:
       '@storybook/node-logger': 7.6.20
       '@storybook/types': 7.6.20
       '@types/find-cache-dir': 3.2.1
-      '@types/node': 18.19.69
+      '@types/node': 18.19.74
       '@types/node-fetch': 2.6.12
       '@types/pretty-hrtime': 1.0.3
       chalk: 4.1.2
@@ -20222,7 +20222,7 @@ snapshots:
 
   debug@4.1.1:
     dependencies:
-      ms: 2.1.1
+      ms: 2.1.3
 
   debug@4.4.0:
     dependencies:
@@ -25425,7 +25425,7 @@ snapshots:
       '@protobufjs/path': 1.1.2
       '@protobufjs/pool': 1.1.0
       '@protobufjs/utf8': 1.1.0
-      '@types/node': 18.19.69
+      '@types/node': 22.10.10
       long: 5.2.3
 
   proxy-agent@6.5.0:
@@ -27352,7 +27352,7 @@ snapshots:
     dependencies:
       '@fastify/busboy': 2.1.1
 
-  undici@6.21.0: {}
+  undici@6.21.1: {}
 
   unicode-trie@2.0.0:
     dependencies: