diff --git a/.github/workflows/pre-merge.yaml b/.github/workflows/pre-merge.yaml
index f1b1716..7447115 100644
--- a/.github/workflows/pre-merge.yaml
+++ b/.github/workflows/pre-merge.yaml
@@ -20,7 +20,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Setup Go
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: Set list of modules
@@ -35,7 +35,7 @@ jobs:
         modules: ${{ fromJSON(needs.detect-modules.outputs.modules) }}
     steps:
       - uses: actions/checkout@v6
-      - uses: actions/setup-go@v6
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: golangci-lint ${{ matrix.modules }}
@@ -53,7 +53,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Setup Go
-        uses: actions/setup-go@v6
+        uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
         with:
           go-version: ${{ env.GO_VERSION }}
       - name: Run tests