diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 929334718..b1e6010d2 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -16,7 +16,7 @@
 		"python.linting.enabled": true,
 		"python.formatting.provider": "black",
 		"python.formatting.blackArgs": [
-			"--target--version",
+			"--target-version",
 			"py37"
 		],
 		"editor.formatOnPaste": false,
@@ -24,4 +24,4 @@
 		"editor.formatOnType": true,
 		"files.trimTrailingWhitespace": true
 	}
-}
\ No newline at end of file
+}