diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 68be4353..3d60e654 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     with:
       ff-site-goal: ''
       ff-os: 'ubuntu-24.04'
-      ff-jdk: '17'
+      ff-jdk: '21'
       ff-goal: '-P run-its verify'
       ff-site-run: false
       failure-upload-path: |
@@ -25,6 +25,6 @@ jobs:
           {"os": "macOS-latest"},
           {"os": "windows-latest"},
           {"jdk": "8"},
-          {"jdk": "11"},
+          {"jdk": "17"},
           {"os": "ubuntu-latest", "jdk": "21"}
         ]
diff --git a/pom.xml b/pom.xml
index 68999559..1438ec19 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <parent>
     <groupId>org.mycore</groupId>
     <artifactId>mycore-parent</artifactId>
-    <version>53</version>
+    <version>56</version>
   </parent>
   <artifactId>dbt-module</artifactId>
   <version>2023.06-SNAPSHOT</version>
@@ -29,7 +29,7 @@
   </scm>
   <properties>
     <grunt.projectBase>${project.build.directory}/grunt</grunt.projectBase>
-    <java.target.version>17</java.target.version>
+    <java.target.version>21</java.target.version>
     <lesscss.compress>true</lesscss.compress>
     <maven.compiler.failOnWarning>true</maven.compiler.failOnWarning>
     <maven.compiler.release>${java.target.version}</maven.compiler.release>