diff --git a/.github/workflows/daily_security.yml b/.github/workflows/daily_security.yml
index 4575929..ddd3e2c 100644
--- a/.github/workflows/daily_security.yml
+++ b/.github/workflows/daily_security.yml
@@ -8,7 +8,7 @@ jobs:
   audit:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.5
+      - uses: actions/checkout@v2.4.0
       - uses: actions-rs/audit-check@v1.2.0
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 7e0926f..1e00976 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -15,7 +15,7 @@ jobs:
     name: Build tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.5
+      - uses: actions/checkout@v2.4.0
       - uses: actions-rs/toolchain@v1.0.7
         with:
           profile: minimal
@@ -34,7 +34,7 @@ jobs:
     name: Run rustfmt
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.5
+      - uses: actions/checkout@v2.4.0
       - uses: actions-rs/toolchain@v1.0.7
         with:
           profile: minimal
@@ -50,7 +50,7 @@ jobs:
     name: Run rustdoc
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.5
+      - uses: actions/checkout@v2.4.0
       - uses: actions-rs/toolchain@v1.0.7
         with:
           profile: minimal
@@ -67,7 +67,7 @@ jobs:
     name: Run clippy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.5
+      - uses: actions/checkout@v2.4.0
       - uses: actions-rs/toolchain@v1.0.7
         with:
             profile: minimal
@@ -102,7 +102,7 @@ jobs:
           - bans licenses sources
 
     steps:
-      - uses: actions/checkout@v2.3.5
+      - uses: actions/checkout@v2.4.0
       - uses: EmbarkStudios/cargo-deny-action@v1.2.6
         with:
           command: check ${{ matrix.checks }}
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 07de9b3..15266c7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -39,7 +39,7 @@ jobs:
         run: |
           which python3
 
-      - uses: actions/checkout@v2.3.5
+      - uses: actions/checkout@v2.4.0
 
       - name: Download T2 cluster launch script
         run: |