diff --git a/.github/workflows/ci-failure-email.yml b/.github/workflows/ci-failure-email.yml
index a1951177..09d50c2a 100644
--- a/.github/workflows/ci-failure-email.yml
+++ b/.github/workflows/ci-failure-email.yml
@@ -15,7 +15,7 @@ jobs:
     if: contains(fromJSON('["failure","timed_out","action_required"]'), github.event.workflow_run.conclusion)
     permissions:
       issues: write
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: ubuntu-latest
     steps:
       - name: Create or update failure issue
         env:
@@ -74,7 +74,7 @@ jobs:
     if: github.event.workflow_run.conclusion == 'success'
     permissions:
       issues: write
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: ubuntu-latest
     steps:
       - name: Close recovered failure issues
         env:
diff --git a/.github/workflows/e2e_android.yml b/.github/workflows/e2e_android.yml
index 19e9ca73..1a1796b3 100644
--- a/.github/workflows/e2e_android.yml
+++ b/.github/workflows/e2e_android.yml
@@ -41,7 +41,7 @@ concurrency:
 
 jobs:
   e2e-android:
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
       - name: Checkout react-native-update
@@ -164,7 +164,7 @@ jobs:
   # (v10.48.2 的 "doesn't declare constants" 启动崩溃就是这样漏掉的)。
   # 只验证 debug 包能启动进首屏,不跑更新流,所以不需要更新 server 和产物。
   e2e-android-debug-smoke:
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: ubuntu-latest
     timeout-minutes: 30
     steps:
       - name: Checkout react-native-update
@@ -277,7 +277,7 @@ jobs:
           retention-days: 7
 
   e2e-android-rn077-oldarch:
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: ubuntu-latest
     timeout-minutes: 35
     steps:
       - name: Checkout react-native-update
diff --git a/.github/workflows/e2e_ios.yml b/.github/workflows/e2e_ios.yml
index f3219a12..cc031572 100644
--- a/.github/workflows/e2e_ios.yml
+++ b/.github/workflows/e2e_ios.yml
@@ -46,7 +46,7 @@ jobs:
   e2e-ios:
     # 不带 matrix 值全量拼名,否则 check 叫 "e2e-ios (native, --config e2e/…)"
     name: e2e-ios (${{ matrix.suite }})
-    runs-on: blacksmith-6vcpu-macos-26
+    runs-on: macos-26
     # 绿色基线 ~16 分钟。60 分钟覆盖最坏情况:一个用例等满 300s testTimeout,
     # 再叠一次 --retries 1 全量重试。40 分钟不够——实测重试跑到一半被腰斩,
     # 把"慢但能恢复"的运行变成 cancelled,等于白开了 retries。
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 6ca05be9..c2bdab1c 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -16,7 +16,7 @@ concurrency:
 
 jobs:
   lint:
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: ubuntu-latest
     timeout-minutes: 5
 
     steps:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 363a54ed..511a0cf9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -17,7 +17,7 @@ concurrency:
 jobs:
   js-test:
     name: JS Unit Tests
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: ubuntu-latest
     timeout-minutes: 5
 
     steps:
@@ -34,7 +34,7 @@ jobs:
 
   cpp-test:
     name: C++ Unit Tests
-    runs-on: blacksmith-4vcpu-ubuntu-2404
+    runs-on: ubuntu-latest
     timeout-minutes: 10
 
     steps: