diff --git a/CHANGELOG.md b/CHANGELOG.md
index 76b11009..43691350 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,7 @@
 # Change Log: Trust-DNS
 
 All notable changes to this project will be documented in this file.
-This project adheres to [Semantic Versioning](http://semver.org/).
+This project adheres to [Semantic Versioning](https://semver.org/).
 
 All notes should be prepended with the location of the change, e.g. `(proto)` or `(resolver)`.
 
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
index 4055613c..aa292fef 100644
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@@ -40,7 +40,7 @@ Project maintainers who do not follow or enforce the Code of Conduct in good fai
 
 ## Attribution
 
-This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [http://contributor-covenant.org/version/1/4][version]
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4, available at [https://www.contributor-covenant.org/it/version/1/4/code-of-conduct/][version]
 
-[homepage]: http://contributor-covenant.org
-[version]: http://contributor-covenant.org/version/1/4/
+[homepage]: https://contributor-covenant.org
+[version]: https://www.contributor-covenant.org/it/version/1/4/code-of-conduct/
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 39911576..b8edc959 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -64,7 +64,7 @@ TBD: add notes on updating certificates in test directories
 
 ### Windows OpenSSL tests are failing
 
-When the OpenSSL related tests fail on Windows, this is often due to a new minor version of the OpenSSL implementation there being increased. There is no good way to get this updated automatically right now. The library for Windows is maintained by Shining Light Productions, available here: [slproweb.com/products/Win32OpenSSL](http://slproweb.com/products/Win32OpenSSL.html). On that page the currently published version can be seen, e.g. `Win64 OpenSSL v1.1.1j Light`. The version downloaded is specified in [Makefile.toml](Makefile.toml), look for `OPENSSL_VERSION = "1_1_1j"` and replace with the correct string.
+When the OpenSSL related tests fail on Windows, this is often due to a new minor version of the OpenSSL implementation there being increased. There is no good way to get this updated automatically right now. The library for Windows is maintained by Shining Light Productions, available here: [slproweb.com/products/Win32OpenSSL](https://slproweb.com/products/Win32OpenSSL.html). On that page the currently published version can be seen, e.g. `Win64 OpenSSL v1.1.1j Light`. The version downloaded is specified in [Makefile.toml](Makefile.toml), look for `OPENSSL_VERSION = "1_1_1j"` and replace with the correct string.
 
 ## FAQ
 
diff --git a/README.md b/README.md
index 0cde46fd..431714cf 100644
--- a/README.md
+++ b/README.md
@@ -153,7 +153,7 @@ Zones will be automatically resigned on any record updates via dynamic DNS. To e
 - [RFC 1995](https://tools.ietf.org/html/rfc1995): Incremental Zone Transfer
 - [RFC 1996](https://tools.ietf.org/html/rfc1996): Notify secondaries of update
 - [Update Leases](https://tools.ietf.org/html/draft-sekar-dns-ul-01): Dynamic DNS Update Leases
-- [Long-Lived Queries](http://tools.ietf.org/html/draft-sekar-dns-llq-01): Notify with bells
+- [Long-Lived Queries](https://tools.ietf.org/html/draft-sekar-dns-llq-01): Notify with bells
 
 ### Secure DNS operations
 - [RFC 5155](https://tools.ietf.org/html/rfc5155): DNSSEC Hashed Authenticated Denial of Existence
@@ -345,8 +345,8 @@ For live discussions beyond this repository, please see this [Discord](https://d
 
 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.
 
diff --git a/bin/Cargo.toml b/bin/Cargo.toml
index 79669ac3..18a00400 100644
--- a/bin/Cargo.toml
+++ b/bin/Cargo.toml
@@ -32,7 +32,7 @@ categories = ["network-programming"]
 
 # This is a string description of the license for this package. Currently
 # crates.io will validate the license provided against a whitelist of known
-# license identifiers from http://spdx.org/licenses/. Multiple licenses can
+# license identifiers from https://spdx.org/licenses/. Multiple licenses can
 # be separated with a `/`
 license = "MIT/Apache-2.0"