diff --git a/.github/workflows/check_netty_snapshots.yml b/.github/workflows/check_netty_snapshots.yml
index 6dcb02acf3..6359621c1c 100644
--- a/.github/workflows/check_netty_snapshots.yml
+++ b/.github/workflows/check_netty_snapshots.yml
@@ -22,7 +22,7 @@ jobs:
             transport: native
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up JDK 1.8
         uses: actions/setup-java@v3
         with:
diff --git a/.github/workflows/check_transport.yml b/.github/workflows/check_transport.yml
index b341275a96..e2cbf9d9ee 100644
--- a/.github/workflows/check_transport.yml
+++ b/.github/workflows/check_transport.yml
@@ -8,7 +8,7 @@ jobs:
     name: preliminary sanity checks
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0 #needed by spotless
       - uses: actions/setup-java@v3
@@ -50,7 +50,7 @@ jobs:
           - os: windows-2019
             transport: native
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: gradle/wrapper-validation-action@v1
       - name: Set up JDK 1.8
         uses: actions/setup-java@v3
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 94be423e99..eaa28e151d 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 71228f5f48..d3fa18fc37 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -16,7 +16,7 @@ jobs:
       versionType: ${{ steps.version.outputs.versionType }}
       fullVersion: ${{ steps.version.outputs.fullVersion }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: setup java
         uses: actions/setup-java@v3
         with:
@@ -36,7 +36,7 @@ jobs:
     name: reactor-netty-http
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: setup java
         uses: actions/setup-java@v3
         with:
@@ -50,7 +50,7 @@ jobs:
     name: reactor-netty-http-brave
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: setup java
         uses: actions/setup-java@v3
         with:
@@ -64,7 +64,7 @@ jobs:
     name: reactor-netty-incubator-quic
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: setup java
         uses: actions/setup-java@v3
         with:
@@ -82,7 +82,7 @@ jobs:
     if: needs.reactor-netty-core.outputs.versionType == 'SNAPSHOT'
     environment: snapshots
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
@@ -102,7 +102,7 @@ jobs:
     if: needs.reactor-netty-core.outputs.versionType == 'MILESTONE'
     environment: releases
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
@@ -124,7 +124,7 @@ jobs:
     if: needs.reactor-netty-core.outputs.versionType == 'RELEASE'
     environment: releases
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-java@v3
         with:
           distribution: 'temurin'
@@ -147,7 +147,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: tag
         run: |
           git config --local user.name 'reactorbot'
@@ -162,7 +162,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: tag
         run: |
           git config --local user.name 'reactorbot'