diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e0bae0a..3911f9b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -4,11 +4,11 @@ on: [pull_request]
 
 jobs:
   test-go115:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-large
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5  # v2
     - name: Set up Go
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@bfdd3570ce990073878bf10f6b2d79082de49492  # v2
       with:
         go-version: 1.15
     - name: Test
@@ -17,11 +17,11 @@ jobs:
         go test -v ./...
 
   test-go116:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-large
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5  # v2
     - name: Set up Go
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@bfdd3570ce990073878bf10f6b2d79082de49492  # v2
       with:
         go-version: 1.16
     - name: Test
@@ -30,11 +30,11 @@ jobs:
         go test -v ./...
 
   test-go117:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-latest-large
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@ee0669bd1cc54295c223e0bb666b733df41de1c5  # v2
     - name: Set up Go
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@bfdd3570ce990073878bf10f6b2d79082de49492  # v2
       with:
         go-version: 1.17
     - name: Test