diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 36fc9e0..bce7043 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
       - uses: actions/checkout@v7
 
       - name: Set up JDK
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@v6
         with:
           java-version: "25"
           distribution: temurin
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
index acfd5a2..36053e3 100644
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -23,7 +23,7 @@ jobs:
       - uses: actions/checkout@v7
 
       - name: Set up JDK
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@v6
         with:
           java-version: "25"
           distribution: temurin
diff --git a/.github/workflows/pit-mutation-testing.yml b/.github/workflows/pit-mutation-testing.yml
index 2e93098..77df757 100644
--- a/.github/workflows/pit-mutation-testing.yml
+++ b/.github/workflows/pit-mutation-testing.yml
@@ -51,7 +51,7 @@ jobs:
       - uses: actions/checkout@v7
 
       - name: Set up JDK
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@v6
         with:
           # Kept in sync with <maven.compiler.release> in pom.xml. A lower JDK here would fail to
           # compile the project, since Maven targets release 25.
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1022d20..d4ebf3f 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -16,7 +16,7 @@ jobs:
           fetch-depth: 0
 
       - name: Set up JDK
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@v6
         with:
           java-version: "25"
           distribution: temurin