diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 01fb113..dbe9b3e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,7 +29,7 @@ jobs:
         service: [airlock, registry, tool-firewall, gpu-integrity-watch, mcp-firewall, policy-engine, runtime-attestor, integrity-monitor, incident-recorder]
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+      - uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417 # v6.3.0
         with:
           go-version: "1.23"
           cache-dependency-path: services/${{ matrix.service }}/go.sum
@@ -141,7 +141,7 @@ jobs:
       contents: read
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+      - uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417 # v6.3.0
         with:
           go-version: "1.23"
 
@@ -213,7 +213,7 @@ jobs:
         with:
           python-version: "3.12"
 
-      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+      - uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417 # v6.3.0
         with:
           go-version: "1.23"
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index e792c7e..7e4d2d5 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -30,7 +30,7 @@ jobs:
         service: [airlock, registry, tool-firewall, gpu-integrity-watch, mcp-firewall, policy-engine, runtime-attestor, integrity-monitor, incident-recorder]
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
-      - uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+      - uses: actions/setup-go@4b73464bb391d4059bd26b0524d20df3927bd417 # v6.3.0
         with:
           go-version: "1.23"
           cache-dependency-path: services/${{ matrix.service }}/go.sum