diff --git a/pyhelpers/data/metadata.json b/pyhelpers/data/metadata.json
index 7838969..88f6a6a 100644
--- a/pyhelpers/data/metadata.json
+++ b/pyhelpers/data/metadata.json
@@ -5,7 +5,7 @@
     "Affiliation": "Birmingham Centre for Railway Research and Education, School of Engineering, University of Birmingham",
     "Email": "q.fu@bham.ac.uk",
     "Description": "An open-source toolkit for facilitating Python users' data manipulation tasks.",
-    "Version": "1.4.4",
+    "Version": "1.4.5",
     "License": "GPLv3+",
     "First release": "September 2019"
 }
\ No newline at end of file