diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index bdb83f8444..522aa5e78a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -41,7 +41,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Set up JDK ${{ matrix.java }}
-      uses: actions/setup-java@v4.0.0
+      uses: actions/setup-java@v4.2.1
       with:
         distribution: 'zulu'
         java-version: ${{ matrix.java }}
@@ -69,7 +69,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Set up JDK
-      uses: actions/setup-java@v4.0.0
+      uses: actions/setup-java@v4.2.1
       with:
         distribution: 'zulu'
         java-version: ${{ matrix.java }}
@@ -114,7 +114,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Set up JDK ${{ matrix.java }}
-      uses: actions/setup-java@v4.0.0
+      uses: actions/setup-java@v4.2.1
       with:
         distribution: 'zulu'
         java-version: ${{ matrix.java }}
@@ -135,7 +135,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Set up JDK 11
-      uses: actions/setup-java@v4.0.0
+      uses: actions/setup-java@v4.2.1
       with:
         distribution: 'zulu'
         java-version: 11
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index bb1d89fb7d..b1e300e5a6 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -83,7 +83,7 @@ jobs:
         # queries: ./path/to/local/query, your-org/your-repo/queries@main
 
     # Set up right Java version: https://github.com/github/codeql-action/issues/825
-    - uses: actions/setup-java@v4.0.0
+    - uses: actions/setup-java@v4.2.1
       with:
         java-version: ${{ matrix.version }}
         distribution: zulu
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 0faa2de8f1..ab7673bc30 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -48,7 +48,7 @@ jobs:
           key: ${{ runner.os }}-node-${{ hashFiles('SpiNNaker-allocserv/pom.xml') }}
           restore-keys: ${{ runner.os }}-node-
       - name: Set up JDK ${{ matrix.java }}
-        uses: actions/setup-java@v4.0.0
+        uses: actions/setup-java@v4.2.1
         with:
           distribution: 'zulu'
           java-version: ${{ matrix.java }}