diff --git a/.zenodo.json b/.zenodo.json
index 8b050f3..a55f5bf 100644
--- a/.zenodo.json
+++ b/.zenodo.json
@@ -9,7 +9,8 @@
         "affiliation": "Departamento de Ingeniería Química, Universidad de Concepción, Concepción 4030000, Chile"
     }, {
         "name": "Wang, Zhen-Gang",
-        "affiliation": "Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States"
+        "affiliation": "Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States",
+        "orcid": "0000-0002-3361-6114"
     }],
     "description": "Welcome to GCIdentifier! This module provides utilities needed to fragment a given molecular SMILES (or name) based on the groups provided in existing group-contribution methods (such as UNIFAC, Joback's method, etc.). Additional functionalities have been provided to automatically identify and propose new groups.",
     "access_right": "open",
diff --git a/paper/paper.md b/paper/paper.md
index 47cc9df..b50c96f 100644
--- a/paper/paper.md
+++ b/paper/paper.md
@@ -15,6 +15,7 @@ authors:
     affiliation: 3
   - name: Zhen-Gang Wang
     affiliation: 1
+    orcid: 0000-0002-3361-6114
 affiliations:
  - name: Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
    index: 1