diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index ad52d52..19f5c6e 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -28,8 +28,8 @@ jobs:
         if: matrix.language == 'java'
         uses: actions/setup-java@v5
         with:
-          distribution: temurin
-          java-version: '11'
+          distribution: oracle
+          java-version: '21'
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v3
diff --git a/.github/workflows/gh-mvn-publish.yml b/.github/workflows/gh-mvn-publish.yml
index d85b321..6d77e85 100644
--- a/.github/workflows/gh-mvn-publish.yml
+++ b/.github/workflows/gh-mvn-publish.yml
@@ -14,11 +14,11 @@ jobs:
 
     steps:
       - uses: actions/checkout@v5
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v5
         with:
-          java-version: '17'
-          distribution: 'temurin'
+          java-version: '21'
+          distribution: 'oracle'
           server-id: github
           settings-path: ${{ github.workspace }}
 
diff --git a/.github/workflows/maven-publish.yml b/.github/workflows/maven-publish.yml
index 9dba04d..b6aa79a 100644
--- a/.github/workflows/maven-publish.yml
+++ b/.github/workflows/maven-publish.yml
@@ -26,11 +26,11 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v5
         with:
-          java-version: '17'
-          distribution: 'temurin'
+          java-version: '21'
+          distribution: 'oracle'
           server-id: github # Value of the distributionManagement/repository/id field of the pom.xml
           settings-path: ${{ github.workspace }} # location for the settings.xml file
 
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 44069fa..4583cb9 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -36,11 +36,11 @@ jobs:
         run: |
           curl -fsSL https://ollama.com/install.sh | sh
 
-      - name: Set up JDK 17
+      - name: Set up JDK 21
         uses: actions/setup-java@v5
         with:
-          java-version: '17'
-          distribution: 'temurin'
+          java-version: '21'
+          distribution: 'oracle'
           server-id: github
           settings-path: ${{ github.workspace }}