diff --git a/subjects/card_deck/README.md b/subjects/card_deck/README.md
index 16f5cfa84..f50263408 100644
--- a/subjects/card_deck/README.md
+++ b/subjects/card_deck/README.md
@@ -21,7 +21,7 @@ Define:
 
 ### Dependencies
 
-rand = "0.3.14"
+rand = "0.8.5"
 
 ### Expected Functions and Structures