diff --git a/codemeta.json b/codemeta.json
index 882da46b670..b79a0012684 100644
--- a/codemeta.json
+++ b/codemeta.json
@@ -7,11 +7,27 @@
   "softwareVersion": "1.1.6",
   "datePublished": "2017-07-11",
   "license": "https://www.gnu.org/licenses/lgpl-3.0",
-  "programmingLanguage": {
+  "programmingLanguage": [{
     "@type": "ComputerLanguage",
     "identifier": "c++",
     "name": "C++"
   },
+  {
+    "@type": "ComputerLanguage",
+    "identifier": "js",
+    "name": "JavaScript"
+  },
+  {
+    "@type": "ComputerLanguage",
+    "identifier": "python",
+    "name": "Python"
+  },
+  {
+    "@type": "ComputerLanguage",
+    "identifier": "java",
+    "name": "Java"
+  }
+  ],
   "codeRepository": "https://github.com/rism-ch/verovio",
   "issueTracker": "https://github.com/rism-ch/verovio/issues",
   "dateCreated": "2014-01-09T09:44:10Z",
@@ -25,12 +41,12 @@
       "@id": "https://orcid.org/0000-0003-1898-2543",
       "@type": "Person",
       "givenName": "Klaus",
-      "familyName": "Rettinghaus",
+      "familyName": "Rettinghaus"
     },
     {
       "@type": "Person",
       "givenName": "Craig",
-      "familyName": "Sapp",
+      "familyName": "Sapp"
     },
     {
       "@type": "Person",