diff --git a/.github/workflows/ci_test.yml b/.github/workflows/ci_test.yml
index 26b2a10..68be103 100644
--- a/.github/workflows/ci_test.yml
+++ b/.github/workflows/ci_test.yml
@@ -9,10 +9,10 @@
       - name: Checkout Krill
         uses: actions/checkout@v2
 
-      - name: Set up JDK 11
+      - name: Set up JDK 17
         uses: actions/setup-java@v1
         with:
-          java-version: 11
+          java-version: 17
 
       - name: Build and install Krill
         run: mvn install
diff --git a/Readme.md b/Readme.md
index cfe4c4e..eb05604 100644
--- a/Readme.md
+++ b/Readme.md
@@ -46,7 +46,7 @@
 
 ## Prerequisites
 
-Java 11 (OpenJDK or Oracle JDK),
+Java 17 (OpenJDK or Oracle JDK),
 [Git](http://git-scm.com/),
 [Maven 3](https://maven.apache.org/).
 Further dependencies are resolved using Maven.
@@ -98,7 +98,7 @@
 **Authors**: [Nils Diewald](https://www.nils-diewald.de/),
 	     [Eliza Margaretha](https://perso.ids-mannheim.de/seiten/margaretha.html)
 
-Copyright (c) 2013-2022, [IDS Mannheim](https://www.ids-mannheim.de/), Germany
+Copyright (c) 2013-2023, [IDS Mannheim](https://www.ids-mannheim.de/), Germany
 
 Krill is developed as part of the [KorAP](https://korap.ids-mannheim.de/)
 Corpus Analysis Platform at the Institute for German Language