Preparing for version 0.5.2
diff --git a/Doxyfile b/Doxyfile
index b3175bb..eac0175 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -5,7 +5,7 @@
 #---------------------------------------------------------------------------
 DOXYFILE_ENCODING      = UTF-8
 PROJECT_NAME           = CELT
-PROJECT_NUMBER         = 0.5.0
+PROJECT_NUMBER         = 0.5.2
 OUTPUT_DIRECTORY       = doc/API
 CREATE_SUBDIRS         = NO
 OUTPUT_LANGUAGE        = English