Bump version to 0.52pre
diff --git a/examples/busybox.spec b/examples/busybox.spec
index b8e1a20..645dfea 100644
--- a/examples/busybox.spec
+++ b/examples/busybox.spec
@@ -1,5 +1,5 @@
 Name: busybox
-Version: 0.51
+Version: 0.52pre
 Release: 1
 Group: System/Utilities
 Summary: BusyBox is a tiny suite of Unix utilities in a multi-call binary.