diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
index 6eb1637360..dbecff58af 100644
--- a/.github/workflows/codecov.yml
+++ b/.github/workflows/codecov.yml
@@ -25,7 +25,7 @@ jobs:
     name: Coverage test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index 9678f2236e..4df9ad8720 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -14,7 +14,7 @@ jobs:
     name: Update docs
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Setup Git
         run: |
           git config --global user.email "leo@xerial.org"
diff --git a/.github/workflows/package-test.yml b/.github/workflows/package-test.yml
index 454f79a156..7f68b84a36 100644
--- a/.github/workflows/package-test.yml
+++ b/.github/workflows/package-test.yml
@@ -15,7 +15,7 @@ jobs:
     name: Packaging Test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
diff --git a/.github/workflows/release-airspec.yml b/.github/workflows/release-airspec.yml
index a0aaca14b6..916cc39882 100644
--- a/.github/workflows/release-airspec.yml
+++ b/.github/workflows/release-airspec.yml
@@ -11,7 +11,7 @@ jobs:
     name: Publish AirSpec
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 10000
       # Fetch all tags so that sbt-dynver can find the previous release version
diff --git a/.github/workflows/release-js.yml b/.github/workflows/release-js.yml
index f93901b213..c05104707d 100644
--- a/.github/workflows/release-js.yml
+++ b/.github/workflows/release-js.yml
@@ -11,7 +11,7 @@ jobs:
     name: Publish Scala.js
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 10000
       # Fetch all tags so that sbt-dynver can find the previous release version
diff --git a/.github/workflows/release-sbt-plugin.yml b/.github/workflows/release-sbt-plugin.yml
index 14608d0039..8c5eebe96a 100644
--- a/.github/workflows/release-sbt-plugin.yml
+++ b/.github/workflows/release-sbt-plugin.yml
@@ -11,7 +11,7 @@ jobs:
     name: Publish sbt-airframe plugin
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 10000
       # Fetch all tags so that sbt-dynver can find the previous release version
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 930c8820db..6f5075d081 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -11,7 +11,7 @@ jobs:
     name: Publish Scala JVM
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 10000
       # Fetch all tags so that sbt-dynver can find the previous release version
diff --git a/.github/workflows/sbt-integration.yml b/.github/workflows/sbt-integration.yml
index 9e31d07a86..1dd2407073 100644
--- a/.github/workflows/sbt-integration.yml
+++ b/.github/workflows/sbt-integration.yml
@@ -27,7 +27,7 @@ jobs:
     name: sbt-airframe
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 10000
       # Fetch all tags so that sbt-dynver can find the previous release version
diff --git a/.github/workflows/snapshot.yml b/.github/workflows/snapshot.yml
index 125005ef0e..3723095a3c 100644
--- a/.github/workflows/snapshot.yml
+++ b/.github/workflows/snapshot.yml
@@ -17,7 +17,7 @@ jobs:
     name: Publish snapshots
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 10000
       # Fetch all tags so that sbt-dynver can find the previous release version
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c68f8f8a7c..7f4dea3eaa 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -27,7 +27,7 @@ jobs:
     name: Code format
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: scalafmt in Scala 2.x
         run: ./sbt "++ 2.13; scalafmtCheckAll"
       - name: scalafmt in Scala 3
@@ -42,7 +42,7 @@ jobs:
     name: Scala 2.12
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
@@ -61,7 +61,7 @@ jobs:
     name: Scala 2.13
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
@@ -80,7 +80,7 @@ jobs:
     name: Scala 2.13 + JDK11
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
@@ -99,7 +99,7 @@ jobs:
     name: Scala 2.13 + JDK21
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
@@ -118,7 +118,7 @@ jobs:
     name: Scala 3.x (Dotty)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
@@ -138,7 +138,7 @@ jobs:
     name: Scala 3 integration test
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
@@ -157,7 +157,7 @@ jobs:
     name: Scala.js / Scala 2.12
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
@@ -181,7 +181,7 @@ jobs:
     name: Scala.js / Scala 2.13
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
@@ -205,7 +205,7 @@ jobs:
     name: Scala.js / Scala 3
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
@@ -229,7 +229,7 @@ jobs:
     name: AirSpec
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'temurin'