diff --git a/quic/s2n-quic-sim/Cargo.toml b/quic/s2n-quic-sim/Cargo.toml
index 8a05f07d2d..f5495f5d94 100644
--- a/quic/s2n-quic-sim/Cargo.toml
+++ b/quic/s2n-quic-sim/Cargo.toml
@@ -35,4 +35,4 @@ tracing = "0.1"
 tracing-subscriber = { version = "0.3", features = ["env-filter"] }
 # >0.4.1 breaks compatibility with 1.63
 # See https://github.com/aws/s2n-quic/issues/1735
-winnow = "=0.4.1"
+winnow = "=0.5.10"