diff --git a/core/org.eclipse.cdt.core/build.properties b/core/org.eclipse.cdt.core/build.properties
index 2540a6ae901..e7e46d559df 100644
--- a/core/org.eclipse.cdt.core/build.properties
+++ b/core/org.eclipse.cdt.core/build.properties
@@ -32,9 +32,9 @@ source.. = src/,\
            templateengine/,\
            utils/
 
-jre.compilation.profile=J2SE-1.4
-javacSource=1.4
-javacTarget=1.4
+jre.compilation.profile=J2SE-5.0
+javacSource=5.0
+javacTarget=5.0
 source.library.jar = model/,\
                      browser/,\
                      src/,\