diff --git a/filecloudapi/fcserver.py b/filecloudapi/fcserver.py
index f3e0241..986f191 100644
--- a/filecloudapi/fcserver.py
+++ b/filecloudapi/fcserver.py
@@ -671,6 +671,8 @@ def upload(
         uploadf: BufferedReader,
         serverpath: str,
         datemodified: datetime.datetime,
+        nofileoverwrite: bool = False,
+        iflastmodified: Optional[datetime.datetime] = None,
         adminproxyuserid: Optional[str] = None,
         progress: Optional[Progress] = None,
     ) -> None:
@@ -799,6 +801,10 @@ def close(self):
                 "filesize": 0,
                 "date": self._serverdatetime(datemodified),
                 "adminproxyuserid": adminproxyuserid,
+                "nofileoverwrite": nofileoverwrite,
+                "iflastmodified": (
+                    self._serverdatetime(iflastmodified) if iflastmodified else None
+                ),
             }
             params_str = urlencode(params)
 
@@ -840,6 +846,10 @@ def close(self):
                 "filename": name,
                 "date": self._serverdatetime(datemodified),
                 "adminproxyuserid": adminproxyuserid,
+                "nofileoverwrite": nofileoverwrite,
+                "iflastmodified": (
+                    self._serverdatetime(iflastmodified) if iflastmodified else None
+                ),
             }
 
             if data_size is not None:
diff --git a/pyproject.toml b/pyproject.toml
index 94b48ce..7d81840 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [tool.poetry]
 
 name = "filecloudapi-python"
-version = "0.2.1"
+version = "0.3.0"
 description = "A Python library to connect to a Filecloud server"
 
 packages = [{ include = "filecloudapi" }]