diff --git a/sigil/eclipse/core/sigil.properties b/sigil/eclipse/core/sigil.properties
index 0795aef..f5751b7 100644
--- a/sigil/eclipse/core/sigil.properties
+++ b/sigil/eclipse/core/sigil.properties
@@ -29,7 +29,7 @@
 	org.apache.felix.sigil.repository, \
 	org.eclipse.core.expressions;version=3.4.1, \
 	org.eclipse.core.resources;version=3.4.1, \
-	org.eclipse.core.runtime;version=3.4.0, \
+	org.eclipse.core.runtime.content;version=3.3.0, \
 	org.eclipse.core.runtime.jobs;version=3.4.0, \
 	org.eclipse.debug.core;version=3.4.0, \
 	org.eclipse.jdt.core;version=3.4.2, \
@@ -44,4 +44,10 @@
 	org.osgi.service.prefs;version=1.1.0, \
 	org.osgi.util.tracker;version=1.3.3, \
 
+-requires: \
+	org.eclipse.core.runtime;version=3.4.0, \
+	org.eclipse.equinox.common;version=3.4.0, \
+	org.eclipse.equinox.registry;version=3.4.0, \
+	org.eclipse.swt.carbon.macosx;version=3.4.1, \
+
 # end