Update prereqs for WTP 3.9.0
diff --git a/scripts/build-preparation.sh b/scripts/build-preparation.sh
index fd904f7..ecbc5bd 100755
--- a/scripts/build-preparation.sh
+++ b/scripts/build-preparation.sh
@@ -1,4 +1,4 @@
#!/bin/bash
-#Replaces @buildversionid@ by 3.8.0, in the category.xml files.
-find ./ -name category.xml -type f -exec sed -i 's/@buildversionid@/3.8.0/g' {} \;
+#Replaces @buildversionid@ by 3.9.0, in the category.xml files.
+find ./ -name category.xml -type f -exec sed -i 's/@buildversionid@/3.9.0/g' {} \;
