diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 1fcf253..b27df56 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     name: Check
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3.1.0
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
@@ -29,7 +29,7 @@ jobs:
         os: [ubuntu-latest, windows-latest, macOS-latest]
         rust: [stable]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3.1.0
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
@@ -48,7 +48,7 @@ jobs:
     name: Run jsonnet example
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3.1.0
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal
@@ -67,7 +67,7 @@ jobs:
     name: Rustfmt
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3.1.0
       - uses: actions-rs/toolchain@v1
         with:
           profile: minimal