diff --git a/.github/local-actions/branch-manager/package.json b/.github/local-actions/branch-manager/package.json
index c4026a568..1979e701c 100644
--- a/.github/local-actions/branch-manager/package.json
+++ b/.github/local-actions/branch-manager/package.json
@@ -5,6 +5,6 @@
     "@octokit/rest": "22.0.1",
     "@types/node": "24.12.0",
     "typed-graphqlify": "3.1.6",
-    "undici": "7.24.7"
+    "undici": "8.0.0"
   }
 }
diff --git a/.github/local-actions/labels-sync/package.json b/.github/local-actions/labels-sync/package.json
index cc63f5d93..dbca53143 100644
--- a/.github/local-actions/labels-sync/package.json
+++ b/.github/local-actions/labels-sync/package.json
@@ -5,6 +5,6 @@
     "@octokit/rest": "22.0.1",
     "@octokit/types": "16.0.0",
     "@types/node": "24.12.0",
-    "undici": "7.24.7"
+    "undici": "8.0.0"
   }
 }
diff --git a/.github/local-actions/lock-closed/package.json b/.github/local-actions/lock-closed/package.json
index cc63f5d93..dbca53143 100644
--- a/.github/local-actions/lock-closed/package.json
+++ b/.github/local-actions/lock-closed/package.json
@@ -5,6 +5,6 @@
     "@octokit/rest": "22.0.1",
     "@octokit/types": "16.0.0",
     "@types/node": "24.12.0",
-    "undici": "7.24.7"
+    "undici": "8.0.0"
   }
 }
diff --git a/github-actions/branch-manager/package.json b/github-actions/branch-manager/package.json
index 3f2f34a19..b6b42f26d 100644
--- a/github-actions/branch-manager/package.json
+++ b/github-actions/branch-manager/package.json
@@ -7,6 +7,6 @@
     "@octokit/webhooks-types": "7.6.1",
     "@types/node": "24.12.0",
     "typed-graphqlify": "3.1.6",
-    "undici": "7.24.7"
+    "undici": "8.0.0"
   }
 }
diff --git a/github-actions/google-internal-tests/package.json b/github-actions/google-internal-tests/package.json
index f28e08edc..4ea29d53c 100644
--- a/github-actions/google-internal-tests/package.json
+++ b/github-actions/google-internal-tests/package.json
@@ -6,6 +6,6 @@
     "@octokit/rest": "22.0.1",
     "@types/node": "24.12.0",
     "typed-graphqlify": "3.1.6",
-    "undici": "7.24.7"
+    "undici": "8.0.0"
   }
 }
diff --git a/github-actions/labeling/package.json b/github-actions/labeling/package.json
index 4bba58f01..5dd5ce6bf 100644
--- a/github-actions/labeling/package.json
+++ b/github-actions/labeling/package.json
@@ -10,7 +10,7 @@
     "@types/node": "24.12.0",
     "micromatch": "^4.0.8",
     "typed-graphqlify": "3.1.6",
-    "undici": "7.24.7",
+    "undici": "8.0.0",
     "@octokit/openapi-types": "27.0.0",
     "jasmine": "6.1.0"
   }
diff --git a/github-actions/org-file-sync/package.json b/github-actions/org-file-sync/package.json
index 56a3db6fd..ff7d932e1 100644
--- a/github-actions/org-file-sync/package.json
+++ b/github-actions/org-file-sync/package.json
@@ -7,6 +7,6 @@
     "@octokit/types": "16.0.0",
     "@types/node": "24.12.0",
     "typed-graphqlify": "3.1.6",
-    "undici": "7.24.7"
+    "undici": "8.0.0"
   }
 }
diff --git a/github-actions/post-approval-changes/package.json b/github-actions/post-approval-changes/package.json
index 3f2f34a19..b6b42f26d 100644
--- a/github-actions/post-approval-changes/package.json
+++ b/github-actions/post-approval-changes/package.json
@@ -7,6 +7,6 @@
     "@octokit/webhooks-types": "7.6.1",
     "@types/node": "24.12.0",
     "typed-graphqlify": "3.1.6",
-    "undici": "7.24.7"
+    "undici": "8.0.0"
   }
 }
diff --git a/github-actions/unified-status-check/package.json b/github-actions/unified-status-check/package.json
index 079f1a7c3..10f93a9b2 100644
--- a/github-actions/unified-status-check/package.json
+++ b/github-actions/unified-status-check/package.json
@@ -8,6 +8,6 @@
     "@octokit/types": "16.0.0",
     "@types/node": "24.12.0",
     "typed-graphqlify": "3.1.6",
-    "undici": "7.24.7"
+    "undici": "8.0.0"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 62dd6565d..00fdd1e6a 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -74,8 +74,8 @@ importers:
         specifier: 3.1.6
         version: 3.1.6
       undici:
-        specifier: 7.24.7
-        version: 7.24.7
+        specifier: 8.0.0
+        version: 8.0.0
 
   .github/local-actions/labels-sync:
     dependencies:
@@ -95,8 +95,8 @@ importers:
         specifier: 24.12.0
         version: 24.12.0
       undici:
-        specifier: 7.24.7
-        version: 7.24.7
+        specifier: 8.0.0
+        version: 8.0.0
 
   .github/local-actions/lock-closed:
     dependencies:
@@ -116,8 +116,8 @@ importers:
         specifier: 24.12.0
         version: 24.12.0
       undici:
-        specifier: 7.24.7
-        version: 7.24.7
+        specifier: 8.0.0
+        version: 8.0.0
 
   apps/code-of-conduct:
     dependencies:
@@ -347,8 +347,8 @@ importers:
         specifier: 3.1.6
         version: 3.1.6
       undici:
-        specifier: 7.24.7
-        version: 7.24.7
+        specifier: 8.0.0
+        version: 8.0.0
 
   github-actions/browserstack:
     dependencies:
@@ -377,8 +377,8 @@ importers:
         specifier: 3.1.6
         version: 3.1.6
       undici:
-        specifier: 7.24.7
-        version: 7.24.7
+        specifier: 8.0.0
+        version: 8.0.0
 
   github-actions/labeling:
     dependencies:
@@ -416,8 +416,8 @@ importers:
         specifier: 3.1.6
         version: 3.1.6
       undici:
-        specifier: 7.24.7
-        version: 7.24.7
+        specifier: 8.0.0
+        version: 8.0.0
 
   github-actions/org-file-sync:
     dependencies:
@@ -440,8 +440,8 @@ importers:
         specifier: 3.1.6
         version: 3.1.6
       undici:
-        specifier: 7.24.7
-        version: 7.24.7
+        specifier: 8.0.0
+        version: 8.0.0
 
   github-actions/post-approval-changes:
     dependencies:
@@ -464,8 +464,8 @@ importers:
         specifier: 3.1.6
         version: 3.1.6
       undici:
-        specifier: 7.24.7
-        version: 7.24.7
+        specifier: 8.0.0
+        version: 8.0.0
 
   github-actions/previews/pack-and-upload-artifact:
     dependencies:
@@ -518,8 +518,8 @@ importers:
         specifier: 3.1.6
         version: 3.1.6
       undici:
-        specifier: 7.24.7
-        version: 7.24.7
+        specifier: 8.0.0
+        version: 8.0.0
 
   ng-dev:
     dependencies:
@@ -5866,6 +5866,10 @@ packages:
     resolution: {integrity: sha512-H/nlJ/h0ggGC+uRL3ovD+G0i4bqhvsDOpbDv7At5eFLlj2b41L8QliGbnl2H7SnDiYhENphh1tQFJZf+MyfLsQ==}
     engines: {node: '>=20.18.1'}
 
+  undici@8.0.0:
+    resolution: {integrity: sha512-RGabV5g1ggSX5mU4k+B8BLWgb418gDbg0wAVFeiU00iOxtw4ufGsE6GFsuSd2uqOKooWSLf71JGapOFYpE8f+A==}
+    engines: {node: '>=22.19.0'}
+
   unicode-emoji-modifier-base@1.0.0:
     resolution: {integrity: sha512-yLSH4py7oFH3oG/9K+XWrz1pSi3dfUrWEnInbxMfArOfc1+33BlGPQtLsOYwvdMy11AwUBetYuaRxSPqgkq+8g==}
     engines: {node: '>=4'}
@@ -12147,6 +12151,8 @@ snapshots:
 
   undici@7.24.7: {}
 
+  undici@8.0.0: {}
+
   unicode-emoji-modifier-base@1.0.0: {}
 
   unique-string@2.0.0: