diff --git a/Cargo.toml b/Cargo.toml
index 5ae69c76..5fcee154 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 name = "cargo-hack"
 version = "0.6.4"
 edition = "2021"
-rust-version = "1.64"
+rust-version = "1.65"
 license = "Apache-2.0 OR MIT"
 repository = "https://github.com/taiki-e/cargo-hack"
 keywords = ["cargo", "subcommand", "testing"]
diff --git a/README.md b/README.md
index b7ad04af..2b9f7333 100644
--- a/README.md
+++ b/README.md
@@ -412,7 +412,7 @@ fields of [`cargo metadata`][cargo-metadata].*
 cargo +stable install cargo-hack --locked
 ```
 
-*Compiler support: requires rustc 1.64+*
+*Compiler support: requires rustc 1.65+*
 
 cargo-hack is usually runnable with Cargo versions older than the Rust version
 required for installation (e.g., `cargo +1.31 hack check`). Currently, to run