diff --git a/.classpath b/.classpath
index e928d75..22a0b99 100644
--- a/.classpath
+++ b/.classpath
@@ -2,7 +2,7 @@
 <classpath>
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="src" path="test"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11">
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-17">
 		<attributes>
 			<attribute name="module" value="true"/>
 			<attribute name="owner.project.facets" value="java"/>
diff --git a/.settings/org.eclipse.jdt.core.prefs b/.settings/org.eclipse.jdt.core.prefs
index 6fd665d..05e5569 100644
--- a/.settings/org.eclipse.jdt.core.prefs
+++ b/.settings/org.eclipse.jdt.core.prefs
@@ -10,9 +10,9 @@ org.eclipse.jdt.core.codeComplete.staticFieldSuffixes=
 org.eclipse.jdt.core.codeComplete.staticFinalFieldPrefixes=
 org.eclipse.jdt.core.codeComplete.staticFinalFieldSuffixes=
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=17
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=11
+org.eclipse.jdt.core.compiler.compliance=17
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
@@ -21,7 +21,7 @@ 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=11
+org.eclipse.jdt.core.compiler.source=17
 org.eclipse.jdt.core.formatter.align_type_members_on_columns=false
 org.eclipse.jdt.core.formatter.alignment_for_additive_operator=16
 org.eclipse.jdt.core.formatter.alignment_for_arguments_in_allocation_expression=16
diff --git a/.settings/org.eclipse.wst.common.project.facet.core.xml b/.settings/org.eclipse.wst.common.project.facet.core.xml
index c6dae74..4e11ed5 100644
--- a/.settings/org.eclipse.wst.common.project.facet.core.xml
+++ b/.settings/org.eclipse.wst.common.project.facet.core.xml
@@ -3,5 +3,5 @@
   <fixed facet="jst.java"/>
   <fixed facet="jst.utility"/>
   <installed facet="jst.utility" version="1.0"/>
-  <installed facet="jst.java" version="11"/>
+  <installed facet="jst.java" version="17"/>
 </faceted-project>
diff --git a/build.properties b/build.properties
index 97b52d7..dced222 100644
--- a/build.properties
+++ b/build.properties
@@ -1,3 +1,3 @@
 product.name=devinsy-unix
 product.revision.major=0
-product.revision.minor=11
+product.revision.minor=17