diff --git a/.github/workflows/bip0032.yml b/.github/workflows/bip0032.yml
index 613d075..5939d1f 100644
--- a/.github/workflows/bip0032.yml
+++ b/.github/workflows/bip0032.yml
@@ -78,7 +78,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: 1.60.0
+          toolchain: 1.61.0
           override: true
 
       - name: Test
diff --git a/bip0032/Cargo.toml b/bip0032/Cargo.toml
index 17e7a91..3e8621c 100644
--- a/bip0032/Cargo.toml
+++ b/bip0032/Cargo.toml
@@ -3,7 +3,7 @@ name = "bip0032"
 version = "0.0.0"
 authors = ["koushiro <koushiro.cqx@gmail.com>"]
 edition = "2021"
-rust-version = "1.60.0"
+rust-version = "1.61.0"
 resolver = "2"
 
 description = "Another Rust implementation of BIP-0032 standard"
diff --git a/bip0032/README.md b/bip0032/README.md
index 76efcc6..e4431c8 100644
--- a/bip0032/README.md
+++ b/bip0032/README.md
@@ -3,7 +3,7 @@
 [![gha-svg]][gha-url]
 [![crates-svg]][crates-url]
 [![docs-svg]][docs-url]
-[![msrv-svg]][msrv-url]
+![msrv-svg]
 
 [gha-svg]: https://github.com/koushiro/rust-bips/workflows/bip0032/badge.svg
 [gha-url]: https://github.com/koushiro/rust-bips/actions
@@ -11,8 +11,7 @@
 [crates-url]: https://crates.io/crates/bip0032
 [docs-svg]: https://docs.rs/bip0032/badge.svg
 [docs-url]: https://docs.rs/bip0032
-[msrv-svg]: https://img.shields.io/badge/rustc-1.60+-blue.svg
-[msrv-url]: https://blog.rust-lang.org/2022/04/07/Rust-1.60.0.html
+[msrv-svg]: https://img.shields.io/badge/rustc-1.61+-blue.svg
 
 Another Rust implementation of [BIP-0032](https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki) standard.