diff --git a/core/org.eclipse.cdt.ui/.classpath b/core/org.eclipse.cdt.ui/.classpath
index 7251ee2bf4c..fcd0420f98a 100644
--- a/core/org.eclipse.cdt.ui/.classpath
+++ b/core/org.eclipse.cdt.ui/.classpath
@@ -3,7 +3,7 @@
 	<classpathentry kind="src" path="src"/>
 	<classpathentry kind="src" path="utils.ui"/>
 	<classpathentry kind="src" path="browser"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.3"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.4"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>
diff --git a/core/org.eclipse.cdt.ui/META-INF/MANIFEST.MF b/core/org.eclipse.cdt.ui/META-INF/MANIFEST.MF
index 4cc7601442b..45a5da048c6 100644
--- a/core/org.eclipse.cdt.ui/META-INF/MANIFEST.MF
+++ b/core/org.eclipse.cdt.ui/META-INF/MANIFEST.MF
@@ -71,4 +71,4 @@ Require-Bundle: org.eclipse.ui.ide,
  org.eclipse.core.expressions,
  org.eclipse.ui.navigator.resources
 Eclipse-LazyStart: true
-Bundle-RequiredExecutionEnvironment: J2SE-1.3
+Bundle-RequiredExecutionEnvironment: J2SE-1.4