diff --git a/learn-anchor-by-building-tic-tac-toe-part-2/tic-tac-toe/programs/tic-tac-toe/Cargo.toml b/learn-anchor-by-building-tic-tac-toe-part-2/tic-tac-toe/programs/tic-tac-toe/Cargo.toml
index a0a8a491..325340c5 100644
--- a/learn-anchor-by-building-tic-tac-toe-part-2/tic-tac-toe/programs/tic-tac-toe/Cargo.toml
+++ b/learn-anchor-by-building-tic-tac-toe-part-2/tic-tac-toe/programs/tic-tac-toe/Cargo.toml
@@ -18,4 +18,4 @@ default = []
 [dependencies]
 anchor-lang = "0.27.0"
 num-traits = "0.2"
-num-derive = "0.3"
+num-derive = "0.4"
diff --git a/learn-how-to-build-a-client-side-app-part-1/tic-tac-toe/programs/tic-tac-toe/Cargo.toml b/learn-how-to-build-a-client-side-app-part-1/tic-tac-toe/programs/tic-tac-toe/Cargo.toml
index 37632c1d..3a7fd145 100644
--- a/learn-how-to-build-a-client-side-app-part-1/tic-tac-toe/programs/tic-tac-toe/Cargo.toml
+++ b/learn-how-to-build-a-client-side-app-part-1/tic-tac-toe/programs/tic-tac-toe/Cargo.toml
@@ -18,4 +18,4 @@ default = []
 [dependencies]
 anchor-lang = "0.28.0"
 num-traits = "0.2"
-num-derive = "0.3"
+num-derive = "0.4"