diff --git a/README.md b/README.md
index a6b2fbad..0e1fa17a 100644
--- a/README.md
+++ b/README.md
@@ -136,7 +136,7 @@ light.exe scryer-prolog.wixobj
 ```
 It will generate a very basic MSI file which installs the main executable and a shortcut in the Start Menu. It can be installed with a double-click. To uninstall, go to the Control Panel and uninstall as usual.
 
-Scryer Prolog must be built with **Rust 1.57 and up**.
+Scryer Prolog must be built with **Rust 1.61 and up**.
 
 ### Docker Install