diff --git a/stac_generator/plugins/outputs/stac_fastapi.py b/stac_generator/plugins/outputs/stac_fastapi.py
index 5254644..92d701d 100644
--- a/stac_generator/plugins/outputs/stac_fastapi.py
+++ b/stac_generator/plugins/outputs/stac_fastapi.py
@@ -84,7 +84,7 @@ def item(self, data: dict) -> None:
                     }
 
                     response = requests.post(
-                        urljoin(self.api_url, f"collections"), json=collection, verify=self.verify
+                        urljoin(self.api_url, "collections"), json=collection, verify=self.verify
                     )
 
                     response = requests.post(
@@ -107,11 +107,10 @@ def item(self, data: dict) -> None:
 
     def collection(self, data: dict) -> None:
 
-        response = requests.update(
-            urljoin(self.api_url, f"collections"), json=data, verify=self.verify
+        response = requests.post(
+            urljoin(self.api_url, "collections"), json=data, verify=self.verify
         )
 
-
     def export(self, data: dict, **kwargs) -> None:
 
         if kwargs['TYPE'].value == "item":