diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 67d20b1..9e79af1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ on:
     branches: master
 
 env:
-  MSRV: 1.56.1
+  MSRV: 1.63
   RUSTFLAGS: "-Dwarnings"
   CARGO_INCREMENTAL: 0
   RUST_BACKTRACE: 1
diff --git a/Cargo.toml b/Cargo.toml
index b38c755..6ab7b0e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ repository = "https://github.com/filecoin-project/blstrs"
 documentation = "https://docs.rs/blstrs"
 categories = ["cryptography", "algorithms"]
 readme = "README.md"
-rust-version = "1.56.1"
+rust-version = "1.63"
 
 [package.metadata.docs.rs]
 rustdoc-args = [ "--html-in-header", "katex-header.html" ]
diff --git a/rust-toolchain b/rust-toolchain
index 43c989b..af92bdd 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-1.56.1
+1.63.0