diff --git a/.github/workflows/conformance.yml b/.github/workflows/conformance.yml
index f255899..f1796bd 100644
--- a/.github/workflows/conformance.yml
+++ b/.github/workflows/conformance.yml
@@ -72,7 +72,7 @@ jobs:
         with:
           bun-version: "1.3.10"
 
-      - uses: actions/setup-go@3041bf56c941b39c61721a86cd11f3bb1338122a # v5.2.0
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         if: matrix.server == 'go'
         with:
           go-version: "1.22"
diff --git a/.github/workflows/examples-go.yml b/.github/workflows/examples-go.yml
index bb08dbc..46563d6 100644
--- a/.github/workflows/examples-go.yml
+++ b/.github/workflows/examples-go.yml
@@ -22,7 +22,7 @@ jobs:
         working-directory: examples/go
     steps:
       - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
-      - uses: actions/setup-go@3041bf56c941b39c61721a86cd11f3bb1338122a # v5.2.0
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
           go-version: "1.22"
       - name: Vet, test, and build the client and server
diff --git a/.github/workflows/examples-interop.yml b/.github/workflows/examples-interop.yml
index c480755..4ece388 100644
--- a/.github/workflows/examples-interop.yml
+++ b/.github/workflows/examples-interop.yml
@@ -32,7 +32,7 @@ jobs:
       - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       # --- Go (always needed: hub reference client + server) -----------------
-      - uses: actions/setup-go@3041bf56c941b39c61721a86cd11f3bb1338122a # v5.2.0
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
           go-version: "1.22"