diff --git a/2020/Cargo.toml b/2020/Cargo.toml
index bd823fa..9f99dbd 100644
--- a/2020/Cargo.toml
+++ b/2020/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2018"
 [dependencies]
 bytecount = "0.6"
 clap = "3.0.0-beta.2"
-itertools = "0.9"
+itertools = "0.10"
 num-integer = "0.1"
 regex = "1"