diff --git a/.github/workflows/changelog.yml b/.github/workflows/changelog.yml
index 1a3499ee6..18e380912 100644
--- a/.github/workflows/changelog.yml
+++ b/.github/workflows/changelog.yml
@@ -7,7 +7,7 @@ jobs:
   test:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - run: bash -c "! git diff --exit-code origin/master... CHANGELOG.md"
diff --git a/.github/workflows/esprc.yml b/.github/workflows/esprc.yml
index 83a2ac377..ba1a1c89d 100644
--- a/.github/workflows/esprc.yml
+++ b/.github/workflows/esprc.yml
@@ -15,7 +15,7 @@ jobs:
           - "201"
           - "203"
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v4
     - uses: actions-rs/toolchain@v1
       with:
         toolchain: "1.56.0"
@@ -35,7 +35,7 @@ jobs:
           - "201"
           - "203"
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v4
     - uses: actions-rs/toolchain@v1
       with:
         toolchain: "1.56.0"
diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index f8f39d6a0..a5fd1d052 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -9,7 +9,7 @@ jobs:
   pages:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - uses: actions-rs/toolchain@v1
       with:
         toolchain: "1.56.0"
@@ -21,7 +21,7 @@ jobs:
         command: doc
         args: --no-deps --all-features
     - name: Deploy GitHub Pages
-      uses: peaceiris/actions-gh-pages@v3
+      uses: peaceiris/actions-gh-pages@v4
       with:
         github_token: ${{ secrets.GITHUB_TOKEN }}
         publish_dir: ./target/doc
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index f3376817e..64e53bd18 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -15,7 +15,7 @@ jobs:
           - stable
           - "1.56.0"  # MSRV (for edition 2021)
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v4
     - uses: actions-rs/toolchain@v1
       with:
         profile: minimal
@@ -23,7 +23,7 @@ jobs:
         components: rustfmt  # espr uses rustfmt in tests
         default: true
         override: true
-    - uses: Swatinem/rust-cache@v1
+    - uses: Swatinem/rust-cache@v2
     - uses: actions-rs/cargo@v1
       with:
         command: test
@@ -32,7 +32,7 @@ jobs:
   check-format:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v4
     - uses: actions-rs/toolchain@v1
       with:
         toolchain: "1.56.0"
@@ -48,7 +48,7 @@ jobs:
   doc:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v4
     - uses: actions-rs/toolchain@v1
       with:
         toolchain: "1.56.0"
@@ -63,7 +63,7 @@ jobs:
   clippy:
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v4
     - uses: actions-rs/toolchain@v1
       with:
         toolchain: "1.56.0"