diff --git a/Cargo.toml b/Cargo.toml
index 46366fc..3a6618f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -10,7 +10,7 @@ authors = ["Pierre Chifflier <chifflier@wzdftpd.net>"]
 categories = ["parser-implementations"]
 readme = "README.md"
 edition = "2018"
-rust-version = "1.53"
+rust-version = "1.63"
 
 include = [
   "CHANGELOG.md",