diff --git a/.github/workflows/ceo-audit.yml b/.github/workflows/ceo-audit.yml
index 1b278de6..c75fa928 100644
--- a/.github/workflows/ceo-audit.yml
+++ b/.github/workflows/ceo-audit.yml
@@ -246,7 +246,7 @@ jobs:
           fetch-depth: 0
 
       - name: Setup Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
           cache: true
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7f49147f..c4cf11e4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -35,7 +35,7 @@ jobs:
     timeout-minutes: 2
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
       - name: Trigger n8n webhook
diff --git a/.github/workflows/go-ci.yml b/.github/workflows/go-ci.yml
index d38c12b2..c5863a30 100644
--- a/.github/workflows/go-ci.yml
+++ b/.github/workflows/go-ci.yml
@@ -23,7 +23,7 @@ jobs:
     timeout-minutes: 2
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
       - name: Trigger n8n webhook
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index db5c1eb4..b0c7c46c 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -25,7 +25,7 @@ jobs:
     timeout-minutes: 2
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
       - name: Trigger n8n webhook
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index d4969db2..9526cb47 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -18,7 +18,7 @@ jobs:
         with:
           fetch-depth: 0
 
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
           cache: true
diff --git a/.github/workflows/sin-verify.yml b/.github/workflows/sin-verify.yml
index ede8d20b..368b5f3d 100644
--- a/.github/workflows/sin-verify.yml
+++ b/.github/workflows/sin-verify.yml
@@ -18,7 +18,7 @@ jobs:
     timeout-minutes: 2
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
       - name: Trigger n8n webhook
diff --git a/.github/workflows/skill-e2e.yml b/.github/workflows/skill-e2e.yml
index 51ee2327..d4d64369 100644
--- a/.github/workflows/skill-e2e.yml
+++ b/.github/workflows/skill-e2e.yml
@@ -26,7 +26,7 @@ jobs:
     timeout-minutes: 2
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
       - name: Trigger n8n webhook
diff --git a/.github/workflows/swebench-nightly.yml b/.github/workflows/swebench-nightly.yml
index 2273de0c..829e788a 100644
--- a/.github/workflows/swebench-nightly.yml
+++ b/.github/workflows/swebench-nightly.yml
@@ -23,7 +23,7 @@ jobs:
     timeout-minutes: 2
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version: '1.26'
       - name: Local validation
diff --git a/.github/workflows/test-delegate.yml b/.github/workflows/test-delegate.yml
index c838a21a..ed6f3379 100644
--- a/.github/workflows/test-delegate.yml
+++ b/.github/workflows/test-delegate.yml
@@ -34,7 +34,7 @@ jobs:
     timeout-minutes: 2
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-go@v5
+      - uses: actions/setup-go@v6
         with:
           go-version-file: go.mod
       - name: Trigger n8n webhook