diff --git a/README.md b/README.md
index 1c69402..4d076d7 100644
--- a/README.md
+++ b/README.md
@@ -6,8 +6,8 @@ A DWARF unwinder based on `gimli`.
 
 Licensed under either of
 
-  * Apache License, Version 2.0 ([`LICENSE-APACHE`](./LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
-  * MIT license ([`LICENSE-MIT`](./LICENSE-MIT) or http://opensource.org/licenses/MIT)
+  * Apache License, Version 2.0 ([`LICENSE-APACHE`](./LICENSE-APACHE) or https://www.apache.org/licenses/LICENSE-2.0)
+  * MIT license ([`LICENSE-MIT`](./LICENSE-MIT) or https://opensource.org/licenses/MIT)
 
 at your option.