diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
index e00778632..8a9ddab56 100644
--- a/.github/workflows/codecov.yml
+++ b/.github/workflows/codecov.yml
@@ -27,7 +27,7 @@ jobs:
         #       | paste -sd ',' -
         run: |
           cargo llvm-cov \
-            --features="arbitrary,async-io,async-std,aws-lc-rs,bloom,direct-log,fast-apple-datapath,futures-io,json-output,lock_tracking,log,platform-verifier,qlog,ring,runtime-async-std,runtime-smol,runtime-tokio,rustls,rustls-aws-lc-rs,rustls-log,rustls-ring,serde,serde_json,smol,tracing" \
+            --features="arbitrary,async-io,aws-lc-rs,bloom,direct-log,fast-apple-datapath,futures-io,json-output,lock_tracking,log,platform-verifier,qlog,ring,runtime-smol,runtime-tokio,rustls,rustls-aws-lc-rs,rustls-log,rustls-ring,serde,serde_json,smol,tracing" \
             --workspace --lcov --output-path lcov.info
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v5
diff --git a/Cargo.toml b/Cargo.toml
index dcb32cd5c..9dce26b74 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,7 +15,6 @@ categories = ["network-programming", "asynchronous"]
 anyhow = "1.0.22"
 arbitrary = { version = "1.0.1", features = ["derive"] }
 async-io = "2"
-async-std = "1.11"
 assert_matches = "1.1"
 aws-lc-rs = { version = "1.9", default-features = false }
 bencher = "0.1.5"
diff --git a/quinn/Cargo.toml b/quinn/Cargo.toml
index 8b8e04618..9b7dbaf40 100644
--- a/quinn/Cargo.toml
+++ b/quinn/Cargo.toml
@@ -119,4 +119,4 @@ required-features = ["rustls-ring"]
 
 [package.metadata.docs.rs]
 # all non-default features except fips (cannot build on docs.rs environment)
-features = ["lock_tracking", "rustls-aws-lc-rs", "rustls-ring", "runtime-tokio", "runtime-async-std", "runtime-smol", "log", "rustls-log"]
+features = ["lock_tracking", "rustls-aws-lc-rs", "rustls-ring", "runtime-tokio", "runtime-smol", "log", "rustls-log"]
diff --git a/quinn/src/runtime.rs b/quinn/src/runtime.rs
index 48c27c8f9..e2ba7c60a 100644
--- a/quinn/src/runtime.rs
+++ b/quinn/src/runtime.rs
@@ -158,9 +158,8 @@ impl<MakeFut, Fut> Debug for UdpPollHelper<MakeFut, Fut> {
 /// Automatically select an appropriate runtime from those enabled at compile time
 ///
 /// If `runtime-tokio` is enabled and this function is called from within a Tokio runtime context,
-/// then `TokioRuntime` is returned. Otherwise, if `runtime-async-std` is enabled, `AsyncStdRuntime`
-/// is returned. Otherwise, if `runtime-smol` is enabled, `SmolRuntime` is returned.
-/// Otherwise, `None` is returned.
+/// then `TokioRuntime` is returned. Otherwise, if `runtime-smol` is enabled, `SmolRuntime` is
+/// returned. Otherwise, `None` is returned.
 #[allow(clippy::needless_return)] // Be sure we return the right thing
 pub fn default_runtime() -> Option<Arc<dyn Runtime>> {
     #[cfg(feature = "runtime-tokio")]