diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 08e9322..659d273 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,7 +18,7 @@ jobs:
         os: [ubuntu-latest, windows-latest, macOS-latest]
 
     steps:
-      - uses: actions/checkout@v2.3.3
+      - uses: actions/checkout@v2.3.4
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable
@@ -42,7 +42,7 @@ jobs:
     name: Run doctests via nightly
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2.3.3
+    - uses: actions/checkout@v2.3.4
     # Because we use nightly features for building docs,
     # using --all-features will fail without nightly toolchain.
     - uses: actions-rs/toolchain@v1
@@ -58,7 +58,7 @@ jobs:
     name: Code Coverage
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.3
+      - uses: actions/checkout@v2.3.4
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable
@@ -77,7 +77,7 @@ jobs:
     name: Clippy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.3.3
+      - uses: actions/checkout@v2.3.4
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable