let's get our J2SE-1.4 on
diff --git a/picasso/plugins/org.eclipse.pde.picasso/META-INF/MANIFEST.MF b/picasso/plugins/org.eclipse.pde.picasso/META-INF/MANIFEST.MF
index bacaaf3..8248de5 100644
--- a/picasso/plugins/org.eclipse.pde.picasso/META-INF/MANIFEST.MF
+++ b/picasso/plugins/org.eclipse.pde.picasso/META-INF/MANIFEST.MF
@@ -4,9 +4,9 @@
 Bundle-SymbolicName: org.eclipse.pde.picasso;singleton:=true
 Bundle-Version: 1.0.0.qualifier
 Bundle-Activator: org.eclipse.pde.internal.picasso.Activator
-Require-Bundle: org.eclipse.ui,
- org.eclipse.core.runtime
+Require-Bundle: org.eclipse.ui;bundle-version="[3.3.0,4.0.0)",
+ org.eclipse.core.runtime;bundle-version="[3.3.0,4.0.0)"
 Bundle-ActivationPolicy: lazy
-Bundle-RequiredExecutionEnvironment: J2SE-1.5
+Bundle-RequiredExecutionEnvironment: J2SE-1.4
 Export-Package: org.eclipse.pde.internal.picasso;x-internal:="true"
 Bundle-Localization: plugin