diff --git a/.github/workflows/buildAndTest.yml b/.github/workflows/buildAndTest.yml
index 8bbdeed..1e23c62 100644
--- a/.github/workflows/buildAndTest.yml
+++ b/.github/workflows/buildAndTest.yml
@@ -14,11 +14,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v4
-    - name: Set up JDK 17
+    - name: Set up JDK
       uses: actions/setup-java@v4
       with:
         distribution: 'temurin'
-        java-version: 17
+        java-version: 21
         cache: 'maven'
     - name: Build
       run: mvn -B clean package --file pom.xml
@@ -37,11 +37,11 @@ jobs:
     continue-on-error: ${{ matrix.experimental }}
     steps:
       - uses: actions/checkout@v4
-      - name: Set up JDK 17
+      - name: Set up JDK
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: 17
+          java-version: 21
           cache: 'maven'
       - name: Compatibility tests
         run: mvn -B -U clean test-compile failsafe:integration-test failsafe:verify --file pom.xml -Dkeycloak.version=${{ matrix.keycloak_version }}
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index b299b9f..d1a6edc 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -40,11 +40,11 @@ jobs:
     steps:
     - name: Checkout repository
       uses: actions/checkout@v4
-    - name: Set up JDK 17
+    - name: Set up JDK
       uses: actions/setup-java@v4
       with:
           distribution: 'temurin'
-          java-version: 17
+          java-version: 21
           cache: 'maven'
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/matrix.yml b/.github/workflows/matrix.yml
index eefe39e..38fa2c4 100644
--- a/.github/workflows/matrix.yml
+++ b/.github/workflows/matrix.yml
@@ -16,11 +16,11 @@ jobs:
       - uses: actions/checkout@v4
         with:
             ref: v${{ matrix.extension_version }}
-      - name: Set up JDK 17
+      - name: Set up JDK
         uses: actions/setup-java@v4
         with:
           distribution: 'temurin'
-          java-version: 17
+          java-version: 21
           cache: 'maven'
       - name: Clean and compile
         run: mvn -B -U clean test-compile --file pom.xml
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 39f5b2a..ff52708 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -24,11 +24,11 @@ jobs:
       run: |
         git config user.email "actions@github.com"
         git config user.name "GitHub Actions"
-    - name: Set up JDK 17
+    - name: Set up JDK
       uses: actions/setup-java@v4
       with:
         distribution: 'temurin'
-        java-version: 17
+        java-version: 21
         cache: 'maven'
     - name: Release to GitHub packages
       run: |
diff --git a/pom.xml b/pom.xml
index c4b8779..2f4fbe9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -46,9 +46,9 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.source>17</maven.compiler.source>
-        <maven.compiler.target>17</maven.compiler.target>
-        <maven.compiler.release>17</maven.compiler.release>
+        <maven.compiler.source>21</maven.compiler.source>
+        <maven.compiler.target>21</maven.compiler.target>
+        <maven.compiler.release>21</maven.compiler.release>
 
         <!-- For compilation -->
         <version.keycloak>25.0.0</version.keycloak>