diff --git a/CITATION.cff b/CITATION.cff
index b4bdf50d9..5cb6bbdda 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -11,7 +11,7 @@ authors:
   given-names: Miquel
   orcid: https://orcid.org/0000-0002-9906-6936
 title: 'Ersilia Model Hub: a repository of AI/ML models for neglected tropical diseases'
-version: 0.1.38
+version: 0.1.39
 doi: 10.5281/zenodo.7274645
 date-released: ''
 url: https://github.com/ersilia-os/ersilia
diff --git a/codemeta.json b/codemeta.json
index 7e9f6a7f7..9cf7bc1e8 100644
--- a/codemeta.json
+++ b/codemeta.json
@@ -28,7 +28,7 @@
       "givenName": "Miquel"
     }
   ],
-  "codeRepository": "https://github.com/ersilia-os/ersilia/v0.1.38",
+  "codeRepository": "https://github.com/ersilia-os/ersilia/v0.1.39",
   "dateCreated": "2021-01-01",
   "dateModified": "2024-10-01",
   "datePublished": "2022-10-06",
@@ -221,7 +221,7 @@
   ],
   "url": "https://ersilia.io",
   "downloadUrl": "https://github.com/ersilia-os/ersilia/archive/refs/tags/v0.1.37.tar.gz",
-  "version": "0.1.38",
+  "version": "0.1.39",
   "relatedLink": "https://ersilia.gitbook.io",
   "developmentStatus": "active",
   "issueTracker": "https://github.com/ersilia-os/ersilia/issues"
diff --git a/ersilia/_static_version.py b/ersilia/_static_version.py
index 1640d7908..43dcc4d90 100644
--- a/ersilia/_static_version.py
+++ b/ersilia/_static_version.py
@@ -1 +1 @@
-version = "0.1.38"
+version = "0.1.39"
diff --git a/ersilia/serve/standard_api.py b/ersilia/serve/standard_api.py
index 9cddc33ef..3a98a27ed 100644
--- a/ersilia/serve/standard_api.py
+++ b/ersilia/serve/standard_api.py
@@ -263,21 +263,17 @@ def is_amenable(self, output_data):
         return True
     
     def serialize_to_csv(self, input_data, result, output_data):
-        k = list(result[0].keys())[0]
-        v = result[0][k]
-        if type(v) is list:
-            is_list = True
-        else:
-            is_list = False
         with open(output_data, "w") as f:
             writer = csv.writer(f)
             writer.writerow(self.header)
             for i_d, r_d in zip(input_data, result):
-                v = r_d[k]
-                if not is_list:
-                    r = [i_d["key"], i_d["input"]] + [v]
-                else:
-                    r = [i_d["key"], i_d["input"]] + v
+                r = [i_d["key"], i_d["input"]]
+                for k in self.header[2:]:
+                    v = r_d[k]
+                    if isinstance(v, list):
+                        r+=v
+                    else:
+                        r+=[v]
                 writer.writerow(r)
         return output_data
 
diff --git a/pyproject.toml b/pyproject.toml
index d82e20077..b1896fa66 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "ersilia"
-version = "0.1.38"
+version = "0.1.39"
 description = "A hub of AI/ML models for open source drug discovery and global health"
 license = "GPLv3"
 authors = ["Ersilia Open Source Initiative <hello@ersilia.io>"]
@@ -51,7 +51,7 @@ boto3 = "^1.28.40"
 requests = "^2.31.0"
 numpy = "<=1.26.4"
 setuptools = "^70.0.0"                                      #  added to fix the issue with setuptools
-isaura = { version = "0.1", optional = true }
+isaura = { version = "0.1.39", optional = true }
 aiofiles = "<=24.1.0"
 aiohttp = ">=3.10.11"
 nest_asyncio = "<=1.6.0"