diff --git a/README.md b/README.md
index 18df346f..26c5ff79 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 [![crate](https://img.shields.io/crates/v/num-bigint.svg)](https://crates.io/crates/num-bigint)
 [![documentation](https://docs.rs/num-bigint/badge.svg)](https://docs.rs/num-bigint)
 [![minimum rustc 1.60](https://img.shields.io/badge/rustc-1.60+-red.svg)](https://rust-lang.github.io/rfcs/2495-min-rust-version.html)
-[![build status](https://github.com/rust-num/num-bigint/workflows/master/badge.svg)](https://github.com/rust-num/num-bigint/actions)
+[![build status](https://github.com/rust-num/num-bigint/actions/workflows/master.yaml/badge.svg)](https://github.com/rust-num/num-bigint/actions)
 
 Big integer types for Rust, `BigInt` and `BigUint`.
 
@@ -18,8 +18,8 @@ num-bigint = "0.5"
 
 ## Features
 
-The `std` crate feature is enabled by default, and is mandatory before Rust
-1.36 and the stabilized `alloc` crate.  If you depend on `num-bigint` with
+The `std` crate feature is enabled by default, and is mandatory before Rust 1.36
+and the stabilized `alloc` crate. If you depend on `num-bigint` with
 `default-features = false`, you must manually enable the `std` feature yourself
 if your compiler is not new enough.
 
@@ -48,18 +48,18 @@ The `num-bigint` crate is tested for rustc 1.60 and greater.
 
 ## Alternatives
 
-While `num-bigint` strives for good performance in pure Rust code, other
-crates may offer better performance with different trade-offs.  The following
-table offers a brief comparison to a few alternatives.
+While `num-bigint` strives for good performance in pure Rust code, other crates
+may offer better performance with different trade-offs. The following table
+offers a brief comparison to a few alternatives.
 
-| Crate             | License           | Min rustc | Implementation | Features |
-| :---------------  | :---------------- | :-------- | :------------- | :------- |
-| **`num-bigint`**  | MIT OR Apache-2.0 | 1.60      | pure rust | dynamic width, number theoretical functions |
-| [`awint`]         | MIT OR Apache-2.0 | 1.70      | pure rust | fixed width, heap or stack, concatenation macros |
-| [`bnum`]          | MIT OR Apache-2.0 | 1.87      | pure rust | fixed width, parity with Rust primitives including floats |
-| [`crypto-bigint`] | MIT OR Apache-2.0 | 1.85      | pure rust | fixed width, stack only |
-| [`ibig`]          | MIT OR Apache-2.0 | 1.49      | pure rust | dynamic width, number theoretical functions |
-| [`rug`]           | LGPL-3.0+         | 1.85      | bundles [GMP] via [`gmp-mpfr-sys`] | all the features of GMP, MPFR, and MPC |
+| Crate             | License           | Min rustc | Implementation                     | Features                                                  |
+| :---------------  | :---------------- | :-------- | :--------------------------------- | :-------------------------------------------------------- |
+| **`num-bigint`**  | MIT OR Apache-2.0 | 1.60      | pure Rust                          | dynamic width, number theoretical functions               |
+| [`awint`]         | MIT OR Apache-2.0 | 1.70      | pure Rust                          | fixed width, heap or stack, concatenation macros          |
+| [`bnum`]          | MIT OR Apache-2.0 | 1.87      | pure Rust                          | fixed width, parity with Rust primitives including floats |
+| [`crypto-bigint`] | MIT OR Apache-2.0 | 1.85      | pure Rust                          | fixed width, stack only                                   |
+| [`ibig`]          | MIT OR Apache-2.0 | 1.49      | pure Rust                          | dynamic width, number theoretical functions               |
+| [`rug`]           | LGPL-3.0+         | 1.85      | bundles [GMP] via [`gmp-mpfr-sys`] | all the features of GMP, MPFR, and MPC                    |
 
 [`awint`]: https://crates.io/crates/awint
 [`bnum`]: https://crates.io/crates/bnum
@@ -74,8 +74,8 @@ table offers a brief comparison to a few alternatives.
 
 Licensed under either of
 
- * [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0)
- * [MIT license](http://opensource.org/licenses/MIT)
+ * [Apache License, Version 2.0](https://www.apache.org/licenses/LICENSE-2.0)
+ * [MIT license](https://opensource.org/license/mit)
 
 at your option.