diff --git a/com.vogella.adapters/.classpath b/com.vogella.adapters/.classpath
index f5399bf..81fe078 100644
--- a/com.vogella.adapters/.classpath
+++ b/com.vogella.adapters/.classpath
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-14"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="output" path="bin"/>
diff --git a/com.vogella.adapters/.settings/org.eclipse.jdt.core.prefs b/com.vogella.adapters/.settings/org.eclipse.jdt.core.prefs
index 5867b65..62ef348 100644
--- a/com.vogella.adapters/.settings/org.eclipse.jdt.core.prefs
+++ b/com.vogella.adapters/.settings/org.eclipse.jdt.core.prefs
@@ -1,9 +1,9 @@
 eclipse.preferences.version=1
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=14
-org.eclipse.jdt.core.compiler.compliance=14
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=17
+org.eclipse.jdt.core.compiler.compliance=17
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
 org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
 org.eclipse.jdt.core.compiler.release=enabled
-org.eclipse.jdt.core.compiler.source=14
+org.eclipse.jdt.core.compiler.source=17
diff --git a/com.vogella.adapters/META-INF/MANIFEST.MF b/com.vogella.adapters/META-INF/MANIFEST.MF
index 3e94770..869874b 100644
--- a/com.vogella.adapters/META-INF/MANIFEST.MF
+++ b/com.vogella.adapters/META-INF/MANIFEST.MF
@@ -14,6 +14,6 @@ Require-Bundle: org.eclipse.core.runtime,
  org.eclipse.ui.ide,
  org.eclipse.core.resources,
  org.eclipse.e4.ui.workbench
-Bundle-RequiredExecutionEnvironment: JavaSE-11
+Bundle-RequiredExecutionEnvironment: JavaSE-17
 Import-Package: javax.annotation;version="1.3.5"
 Automatic-Module-Name: com.vogella.adapters