diff --git a/.github/workflows/basic.yml b/.github/workflows/basic.yml
index 27b70b05..e7c5ff42 100644
--- a/.github/workflows/basic.yml
+++ b/.github/workflows/basic.yml
@@ -11,7 +11,11 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        features: ['', '--all-features']
+        features:
+          - ''
+          - '--features=blocking'
+          - '--no-default-features'
+          - '--no-default-features --features=rustls-tls'
         rust:
           - stable
           - beta
diff --git a/Cargo.lock b/Cargo.lock
index 64c11d4e..34f56016 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -77,6 +77,12 @@ version = "3.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "79296716171880943b8470b5f8d03aa55eb2e645a4874bdbb28adb49162e012c"
 
+[[package]]
+name = "byteorder"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
+
 [[package]]
 name = "bytes"
 version = "1.9.0"
@@ -98,6 +104,12 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "cfg_aliases"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "613afe47fcd5fac7ccf1db93babcb082c5994d996f20b8b159f2ad1658eb5724"
+
 [[package]]
 name = "chrono"
 version = "0.4.39"
@@ -275,8 +287,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
 dependencies = [
  "cfg-if",
+ "js-sys",
  "libc",
  "wasi",
+ "wasm-bindgen",
 ]
 
 [[package]]
@@ -391,6 +405,7 @@ dependencies = [
  "tokio",
  "tokio-rustls",
  "tower-service",
+ "webpki-roots",
 ]
 
 [[package]]
@@ -806,6 +821,15 @@ version = "0.3.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "953ec861398dccce10c670dfeaf3ec4911ca479e9c02154b3a215178c5f566f2"
 
+[[package]]
+name = "ppv-lite86"
+version = "0.2.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77957b295656769bb8ad2b6a6b09d897d94f05c41b069aede1fcdaa675eaea04"
+dependencies = [
+ "zerocopy",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.92"
@@ -815,6 +839,58 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "quinn"
+version = "0.11.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62e96808277ec6f97351a2380e6c25114bc9e67037775464979f3037c92d05ef"
+dependencies = [
+ "bytes",
+ "pin-project-lite",
+ "quinn-proto",
+ "quinn-udp",
+ "rustc-hash",
+ "rustls",
+ "socket2",
+ "thiserror",
+ "tokio",
+ "tracing",
+]
+
+[[package]]
+name = "quinn-proto"
+version = "0.11.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a2fe5ef3495d7d2e377ff17b1a8ce2ee2ec2a18cde8b6ad6619d65d0701c135d"
+dependencies = [
+ "bytes",
+ "getrandom",
+ "rand",
+ "ring",
+ "rustc-hash",
+ "rustls",
+ "rustls-pki-types",
+ "slab",
+ "thiserror",
+ "tinyvec",
+ "tracing",
+ "web-time",
+]
+
+[[package]]
+name = "quinn-udp"
+version = "0.5.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c40286217b4ba3a71d644d752e6a0b71f13f1b6a2c5311acfcbe0c2418ed904"
+dependencies = [
+ "cfg_aliases",
+ "libc",
+ "once_cell",
+ "socket2",
+ "tracing",
+ "windows-sys 0.52.0",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.38"
@@ -824,6 +900,36 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "rand"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
+dependencies = [
+ "libc",
+ "rand_chacha",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+dependencies = [
+ "ppv-lite86",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+dependencies = [
+ "getrandom",
+]
+
 [[package]]
 name = "reqwest"
 version = "0.12.12"
@@ -852,7 +958,10 @@ dependencies = [
  "once_cell",
  "percent-encoding",
  "pin-project-lite",
+ "quinn",
+ "rustls",
  "rustls-pemfile",
+ "rustls-pki-types",
  "serde",
  "serde_json",
  "serde_urlencoded",
@@ -860,12 +969,14 @@ dependencies = [
  "system-configuration",
  "tokio",
  "tokio-native-tls",
+ "tokio-rustls",
  "tower",
  "tower-service",
  "url",
  "wasm-bindgen",
  "wasm-bindgen-futures",
  "web-sys",
+ "webpki-roots",
  "windows-registry",
 ]
 
@@ -890,6 +1001,12 @@ version = "0.1.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
 
+[[package]]
+name = "rustc-hash"
+version = "2.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "357703d41365b4b27c590e3ed91eabb1b663f07c4c084095e60cbed4362dff0d"
+
 [[package]]
 name = "rustix"
 version = "0.38.43"
@@ -910,6 +1027,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5065c3f250cbd332cd894be57c40fa52387247659b14a2d6041d121547903b1b"
 dependencies = [
  "once_cell",
+ "ring",
  "rustls-pki-types",
  "rustls-webpki",
  "subtle",
@@ -930,6 +1048,9 @@ name = "rustls-pki-types"
 version = "1.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d2bf47e6ff922db3825eb750c4e2ff784c6ff8fb9e13046ef6a1d1c5401b0b37"
+dependencies = [
+ "web-time",
+]
 
 [[package]]
 name = "rustls-webpki"
@@ -1158,6 +1279,26 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "thiserror"
+version = "2.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d452f284b73e6d76dd36758a0c8684b1d5be31f92b89d07fd5822175732206fc"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "2.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26afc1baea8a989337eeb52b6e72a039780ce45c3edfcc9c5b9d112feeb173c2"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "tinystr"
 version = "0.7.6"
@@ -1168,6 +1309,21 @@ dependencies = [
  "zerovec",
 ]
 
+[[package]]
+name = "tinyvec"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "022db8904dfa342efe721985167e9fcd16c29b226db4397ed752a761cfce81e8"
+dependencies = [
+ "tinyvec_macros",
+]
+
+[[package]]
+name = "tinyvec_macros"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
+
 [[package]]
 name = "tokio"
 version = "1.38.1"
@@ -1402,6 +1558,25 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "web-time"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5a6580f308b1fad9207618087a65c04e7a10bc77e02c8e84e9b00dd4b12fa0bb"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "webpki-roots"
+version = "0.26.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2210b291f7ea53617fbafcc4939f10914214ec15aace5ba62293a668f322c5c9"
+dependencies = [
+ "rustls-pki-types",
+]
+
 [[package]]
 name = "windows-core"
 version = "0.52.0"
@@ -1625,6 +1800,27 @@ dependencies = [
  "synstructure",
 ]
 
+[[package]]
+name = "zerocopy"
+version = "0.7.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
+dependencies = [
+ "byteorder",
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.7.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "zerofrom"
 version = "0.1.4"
diff --git a/Cargo.toml b/Cargo.toml
index 8d470832..562b2804 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,8 +11,16 @@ edition = "2018"
 rust-version = "1.67.1"
 
 [features]
-# Enables use of the synchronous "blocking" Client
+default = ["default-tls"]
+
+# Enables use of the synchronous "blocking" HTTP client
 blocking = ["reqwest/blocking"]
+# Provides TLS support to connect over HTTPS
+default-tls = ["reqwest/default-tls"]
+# Enables TLS functionality provided by `native-tls`
+native-tls = ["reqwest/native-tls"]
+# Enables TLS functionality provided by `rustls`
+rustls-tls = ["reqwest/rustls-tls"]
 
 [dependencies]
 chrono = "0.4.39"
diff --git a/README.md b/README.md
index 7d749b37..2492bb7b 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,9 @@ Upgrading? See the [CHANGELOG](./CHANGELOG.md).
 # Features
 
 - **blocking**: Provides a synchronous "blocking" slack client
+- **default-tls** _(enabled by default)_: Provides TLS support to connect over HTTPS
+- **native-tls**: Enables TLS functionality provided by [`native-tls`](https://crates.io/crates/native-tls)
+- **rustls-tls**: Enables TLS functionality provided by [`rustls`](https://crates.io/crates/rustls)
 
 # Usage