diff --git a/Cargo.lock b/Cargo.lock
index 10789a60..896a1560 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -138,107 +138,6 @@ version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b34d609dfbaf33d6889b2b7106d3ca345eacad44200913df5ba02bfd31d2ba9"
 
-[[package]]
-name = "async-channel"
-version = "1.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59740d83946db6a5af71ae25ddf9562c2b176b2ca42cf99a455f09f4a220d6b9"
-dependencies = [
- "concurrent-queue",
- "event-listener",
- "futures-core",
-]
-
-[[package]]
-name = "async-executor"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb877970c7b440ead138f6321a3b5395d6061183af779340b65e20c0fede9146"
-dependencies = [
- "async-task",
- "concurrent-queue",
- "fastrand",
- "futures-lite",
- "once_cell",
- "vec-arena",
-]
-
-[[package]]
-name = "async-global-executor"
-version = "1.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73079b49cd26b8fd5a15f68fc7707fc78698dc2a3d61430f2a7a9430230dfa04"
-dependencies = [
- "async-executor",
- "async-io",
- "futures-lite",
- "num_cpus",
- "once_cell",
-]
-
-[[package]]
-name = "async-io"
-version = "1.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9315f8f07556761c3e48fec2e6b276004acf426e6dc068b2c2251854d65ee0fd"
-dependencies = [
- "concurrent-queue",
- "fastrand",
- "futures-lite",
- "libc",
- "log 0.4.11",
- "nb-connect",
- "once_cell",
- "parking",
- "polling",
- "vec-arena",
- "waker-fn",
- "winapi 0.3.9",
-]
-
-[[package]]
-name = "async-mutex"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "479db852db25d9dbf6204e6cb6253698f175c15726470f78af0d918e99d6156e"
-dependencies = [
- "event-listener",
-]
-
-[[package]]
-name = "async-std"
-version = "1.8.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f9f84f1280a2b436a2c77c2582602732b6c2f4321d5494d6e799e6c367859a8"
-dependencies = [
- "async-channel",
- "async-global-executor",
- "async-io",
- "async-mutex",
- "blocking",
- "crossbeam-utils 0.8.1",
- "futures-channel",
- "futures-core",
- "futures-io",
- "futures-lite",
- "gloo-timers",
- "kv-log-macro",
- "log 0.4.11",
- "memchr",
- "num_cpus",
- "once_cell",
- "pin-project-lite 0.2.1",
- "pin-utils",
- "slab",
- "wasm-bindgen-futures",
-]
-
-[[package]]
-name = "async-task"
-version = "4.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e91831deabf0d6d7ec49552e489aed63b7456a7a3c46cff62adad428110b0af0"
-
 [[package]]
 name = "async-trait"
 version = "0.1.42"
@@ -250,12 +149,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "atomic-waker"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "065374052e7df7ee4047b1160cca5e1467a12351a40b3da123c870ba0b8eda2a"
-
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -391,20 +284,6 @@ version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8d696c370c750c948ada61c69a0ee2cbbb9c50b1019ddb86d9317157a99c2cae"
 
-[[package]]
-name = "blocking"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c5e170dbede1f740736619b776d7251cb1b9095c435c34d8ca9f57fcd2f335e9"
-dependencies = [
- "async-channel",
- "async-task",
- "atomic-waker",
- "fastrand",
- "futures-lite",
- "once_cell",
-]
-
 [[package]]
 name = "boxfnonce"
 version = "0.1.1"
@@ -462,12 +341,6 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ad1f8e949d755f9d79112b5bb46938e0ef9d3804a0b16dfab13aafcaa5f0fa72"
 
-[[package]]
-name = "cache-padded"
-version = "1.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "631ae5198c9be5e753e5cc215e1bd73c2b466a3565173db433f52bb9d3e66dba"
-
 [[package]]
 name = "cachepot"
 version = "0.1.0"
@@ -633,15 +506,6 @@ dependencies = [
  "tokio 0.2.24",
 ]
 
-[[package]]
-name = "concurrent-queue"
-version = "1.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30ed07550be01594c6026cff2a1d7fe9c8f683caa798e12b68694ac9e88286a3"
-dependencies = [
- "cache-padded",
-]
-
 [[package]]
 name = "conhash"
 version = "0.4.0"
@@ -913,12 +777,6 @@ dependencies = [
  "version_check 0.9.2",
 ]
 
-[[package]]
-name = "event-listener"
-version = "2.5.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7531096570974c3a9dcf9e4b8e1cede1ec26cf5046219fb3b9d897503b9be59"
-
 [[package]]
 name = "failure"
 version = "0.1.8"
@@ -941,15 +799,6 @@ dependencies = [
  "synstructure",
 ]
 
-[[package]]
-name = "fastrand"
-version = "1.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca5faf057445ce5c9d4329e382b2ce7ca38550ef3b73a5348362d5f24e0c7fe3"
-dependencies = [
- "instant",
-]
-
 [[package]]
 name = "filetime"
 version = "0.2.13"
@@ -1106,21 +955,6 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e37c1a51b037b80922864b8eed90692c5cd8abd4c71ce49b77146caa47f3253b"
 
-[[package]]
-name = "futures-lite"
-version = "1.11.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b4481d0cd0de1d204a4fa55e7d45f07b1d958abcb06714b3446438e2eff695fb"
-dependencies = [
- "fastrand",
- "futures-core",
- "futures-io",
- "memchr",
- "parking",
- "pin-project-lite 0.2.1",
- "waker-fn",
-]
-
 [[package]]
 name = "futures-locks"
 version = "0.6.0"
@@ -1241,19 +1075,6 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
 
-[[package]]
-name = "gloo-timers"
-version = "0.2.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "47204a46aaff920a1ea58b11d03dec6f704287d27561724a4631e450654a891f"
-dependencies = [
- "futures-channel",
- "futures-core",
- "js-sys",
- "wasm-bindgen",
- "web-sys",
-]
-
 [[package]]
 name = "h2"
 version = "0.1.26"
@@ -1605,15 +1426,6 @@ dependencies = [
  "winapi-build",
 ]
 
-[[package]]
-name = "kv-log-macro"
-version = "1.0.7"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0de8b303297635ad57c9f5059fd9cee7a47f8e8daa09df0fcd07dd39fb22977f"
-dependencies = [
- "log 0.4.11",
-]
-
 [[package]]
 name = "language-tags"
 version = "0.2.2"
@@ -1911,16 +1723,6 @@ dependencies = [
  "tempfile",
 ]
 
-[[package]]
-name = "nb-connect"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8123a81538e457d44b933a02faf885d3fe8408806b23fa700e8f01c6c3a98998"
-dependencies = [
- "libc",
- "winapi 0.3.9",
-]
-
 [[package]]
 name = "net2"
 version = "0.2.37"
@@ -2151,12 +1953,6 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
-[[package]]
-name = "parking"
-version = "2.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "427c3892f9e783d91cc128285287e70a59e206ca452770ece88a76f7a3eddd72"
-
 [[package]]
 name = "parking_lot"
 version = "0.9.0"
@@ -2395,19 +2191,6 @@ version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3831453b3449ceb48b6d9c7ad7c96d5ea673e9b470a1dc578c2ce6521230884c"
 
-[[package]]
-name = "polling"
-version = "2.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2a7bc6b2a29e632e45451c941832803a18cce6781db04de8a04696cdca8bde4"
-dependencies = [
- "cfg-if 0.1.10",
- "libc",
- "log 0.4.11",
- "wepoll-sys",
- "winapi 0.3.9",
-]
-
 [[package]]
 name = "polyval"
 version = "0.4.5"
@@ -2740,17 +2523,17 @@ version = "0.17.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "95357caf2640abc54651b93c98a8df4fe1ccbf44b8e601ccdf43d5c1451f29ac"
 dependencies = [
- "async-std",
  "async-trait",
  "bytes 0.5.6",
  "combine",
  "dtoa",
  "futures-util",
  "itoa",
+ "native-tls",
  "percent-encoding 2.1.0",
  "pin-project-lite 0.1.11",
- "sha1",
  "tokio 0.2.24",
+ "tokio-tls",
  "tokio-util",
  "url 2.2.0",
 ]
@@ -4056,12 +3839,6 @@ version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b00bca6106a5e23f3eee943593759b7fcddb00554332e856d990c893966879fb"
 
-[[package]]
-name = "vec-arena"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eafc1b9b2dfc6f5529177b62cf806484db55b32dc7c9658a118e11bbeb33061d"
-
 [[package]]
 name = "vec_map"
 version = "0.8.2"
@@ -4110,12 +3887,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "waker-fn"
-version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9d5b2c62b4012a3e1eca5a7e077d13b3bf498c4073e33ccd58626607748ceeca"
-
 [[package]]
 name = "walkdir"
 version = "2.3.1"
@@ -4238,15 +4009,6 @@ dependencies = [
  "wasm-bindgen",
 ]
 
-[[package]]
-name = "wepoll-sys"
-version = "3.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fcb14dea929042224824779fbc82d9fab8d2e6d3cbc0ac404de8edf489e77ff"
-dependencies = [
- "cc",
-]
-
 [[package]]
 name = "which"
 version = "4.0.2"
diff --git a/Cargo.toml b/Cargo.toml
index 55d230dc..158e0303 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -63,7 +63,7 @@ num_cpus = "1.0"
 number_prefix = "0.4"
 percent-encoding = { version = "2", optional = true }
 rand = "0.8"
-redis = { version = "0.17", optional = true }
+redis = { version = "0.17", optional = true, default-features = false, features = ["aio", "tls", "tokio-comp", "tokio-tls-comp"] }
 regex = "1"
 reqwest = { version = "0.10", features = ["json", "blocking"], optional = true }
 retry = "1"
diff --git a/README.md b/README.md
index 68f9a9ea..75ca1acd 100644
--- a/README.md
+++ b/README.md
@@ -163,6 +163,8 @@ You can also define a prefix that will be prepended to the keys of all cache obj
 ### Redis
 Set `CACHEPOT_REDIS` to a [Redis](https://redis.io/) url in format `redis://[:<passwd>@]<hostname>[:port][/<db>]` to store the cache in a Redis instance. Redis can be configured as a LRU (least recently used) cache with a fixed maximum cache size. Set `maxmemory` and `maxmemory-policy` according to the [Redis documentation](https://redis.io/topics/lru-cache). The `allkeys-lru` policy which discards the *least recently accessed or modified* key fits well for the cachepot use case.
 
+Redis over TLS is supported. Use the [`rediss://`](https://www.iana.org/assignments/uri-schemes/prov/rediss) url scheme (note `rediss` vs `redis`). Append `#insecure` the the url to disable hostname verification and accept self-signed certificates (dangerous!). Note that this also disables [SNI](https://en.wikipedia.org/wiki/Server_Name_Indication).
+
 ### Memcached
 Set `CACHEPOT_MEMCACHED` to a [Memcached](https://memcached.org/) url in format `tcp://<hostname>:<port> ...` to store the cache in a Memcached instance.
 
diff --git a/src/cache/redis.rs b/src/cache/redis.rs
index d657bb5e..0f8aa6e5 100644
--- a/src/cache/redis.rs
+++ b/src/cache/redis.rs
@@ -20,19 +20,25 @@ use redis::{cmd, Client, InfoDict};
 use std::collections::HashMap;
 use std::io::Cursor;
 use std::time::{Duration, Instant};
+use url::Url;
 
 /// A cache that stores entries in a Redis.
 #[derive(Clone)]
 pub struct RedisCache {
-    url: String,
+    display_url: String, // for display only: password (if any) will be masked
     client: Client,
 }
 
 impl RedisCache {
     /// Create a new `RedisCache`.
     pub fn new(url: &str) -> Result<RedisCache> {
+        let mut parsed = Url::parse(url)?;
+        // If the URL has a password set, mask it when displaying.
+        if parsed.password().is_some() {
+            let _ = parsed.set_password(Some("*****"));
+        }
         Ok(RedisCache {
-            url: url.to_owned(),
+            display_url: parsed.into_string(),
             client: Client::open(url)?,
         })
     }
@@ -67,7 +73,7 @@ impl Storage for RedisCache {
 
     /// Returns the cache location.
     fn location(&self) -> String {
-        format!("Redis: {}", self.url)
+        format!("Redis: {}", self.display_url)
     }
 
     /// Returns the current cache size. This value is aquired via