diff --git a/.github/workflows/check_netty_snapshots.yml b/.github/workflows/check_netty_snapshots.yml
index 70bd0064b1..2c45075d1b 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 1c5f654575..a3148336ed 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
@@ -53,23 +53,23 @@ jobs:
           - os: macos-11
             transport: native
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           path: reactor-netty
           fetch-depth: 0 #needed by spotless
-#      - uses: actions/checkout@v3
+#      - uses: actions/checkout@v4
 #        with:
 #          repository: netty-contrib/codec-haproxy
 #          path: codec-haproxy
-#      - uses: actions/checkout@v3
+#      - uses: actions/checkout@v4
 #        with:
 #          repository: netty-contrib/codec-extras
 #          path: codec-extras
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           repository: netty-contrib/socks-proxy
           path: socks-proxy
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
             repository: netty-contrib/codec-multipart
             path: codec-multipart
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 4d6e8e2c07..97192d3f11 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -40,7 +40,7 @@ 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 f26aa9d20d..9f40078774 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -17,7 +17,7 @@ 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:
@@ -37,7 +37,7 @@ 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:
@@ -52,7 +52,7 @@ 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:
@@ -71,7 +71,7 @@ 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'
@@ -92,7 +92,7 @@ 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'
@@ -115,7 +115,7 @@ 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'
@@ -138,7 +138,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: tag
         run: |
           git config --local user.name 'reactorbot'
@@ -153,7 +153,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: tag
         run: |
           git config --local user.name 'reactorbot'