diff --git a/README.md b/README.md
index 39dbdc9..dba34ad 100644
--- a/README.md
+++ b/README.md
@@ -294,7 +294,7 @@ See also [A comparison of operating systems written in Rust](https://github.com/
   * [lldb_batchmode.py](https://github.com/rust-lang/rust/blob/master/src/etc/lldb_batchmode.py) — allows to use LLDB in a way similar to GDB's batch mode.
   * [CodeLLDB](https://marketplace.visualstudio.com/items?itemName=vadimcn.vscode-lldb) — a LLDB extension for [Visual Studio Code](https://code.visualstudio.com/).
 * rr
-  * [rr](http://rr-project.org/) — rr is a lightweight tool for recording and replaying execution of applications
+  * [rr](https://rr-project.org/) — rr is a lightweight tool for recording and replaying execution of applications
 
 ### Deployment
 
@@ -639,7 +639,7 @@ See also [Are we (I)DE yet?](https://areweideyet.com/) and [Rust and IDEs](https
   * Neo4j [[cypher](https://crates.io/keywords/cypher), [neo4j](https://crates.io/keywords/neo4j)]
   * Redis [[redis](https://crates.io/keywords/redis)]
     * [mitsuhiko/redis-rs](https://github.com/mitsuhiko/redis-rs) — [Redis](https://redis.io/) library in Rust [<img src="https://api.travis-ci.org/mitsuhiko/redis-rs.svg?branch=master">](https://travis-ci.org/mitsuhiko/redis-rs)
-  * [RocksDB](http://rocksdb.org/)
+  * [RocksDB](https://rocksdb.org/)
     * [spacejam/rust-rocksdb](https://github.com/spacejam/rust-rocksdb) — RocksDB bindings [<img src="https://api.travis-ci.org/spacejam/rust-rocksdb.svg?branch=master">](https://travis-ci.org/spacejam/rust-rocksdb)
   * [UnQLite](https://unqlite.org/)
     * [zitsen/unqlite.rs](https://github.com/zitsen/unqlite.rs) — UnQLite bindings [<img src="https://api.travis-ci.org/zitsen/unqlite.rs.svg?branch=master">](https://travis-ci.org/zitsen/unqlite.rs)