Update README.md

Author: fscorrupt

README.md

@@ -84,7 +84,7 @@ Posterizarr is cross-platform ready, meaning it can run on Linux, [Docker (Alpin
     - **Do not** use `"Legacy API Key"`, it only works with a Project Api Key.
 >- **ImageMagick:** 
     - **Version 7.x is required** - The script handles downloading and using a portable version of ImageMagick for all platforms. **(You may need to run the Script as Admin on first run)**. If you prefer to reference your own installation or prefer to download and install it yourself, goto: [Download ImageMagick](https://imagemagick.org/script/download.php)
->- **Powershell Version:** 5.x or higher (Docker Image uses v7.4.1).
+>- **Powershell Version:** 5.x or higher (Docker Image uses v7.4.2).
 
 ## Configuration: