diff --git a/octoprint_Octoslack/__init__.py b/octoprint_Octoslack/__init__.py
index e28ee30..1b4c589 100644
--- a/octoprint_Octoslack/__init__.py
+++ b/octoprint_Octoslack/__init__.py
@@ -4832,7 +4832,7 @@ def upload_slack_asset(
                 )
             elif slack_client3:
                 upload_rsp = slack_client3.files_upload_v2(
-                    channels=channels,
+                    channel=channels,
                     filename=dest_filename,
                     title=file_description,
                     file=file_to_upload,
diff --git a/setup.py b/setup.py
index 862b196..209db35 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@
 plugin_name = "Octoslack"
 
 # The plugin's version. Can be overwritten within OctoPrint's internal data via __plugin_version__ in the plugin module
-plugin_version = "2.2.1"
+plugin_version = "2.2.2"
 
 # The plugin's description. Can be overwritten within OctoPrint's internal data via __plugin_description__ in the plugin
 # module