diff --git a/Cargo.lock b/Cargo.lock
index e15d346..0c35c1d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2344,7 +2344,7 @@ checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
 
 [[package]]
 name = "s2n-codec"
-version = "0.65.0"
+version = "0.66.0"
 dependencies = [
  "byteorder",
  "bytes",
@@ -2353,7 +2353,7 @@ dependencies = [
 
 [[package]]
 name = "s2n-quic"
-version = "1.65.0"
+version = "1.66.0"
 dependencies = [
  "bytes",
  "cfg-if",
@@ -2376,7 +2376,7 @@ dependencies = [
 
 [[package]]
 name = "s2n-quic-core"
-version = "0.65.0"
+version = "0.66.0"
 dependencies = [
  "atomic-waker",
  "byteorder",
@@ -2395,7 +2395,7 @@ dependencies = [
 
 [[package]]
 name = "s2n-quic-crypto"
-version = "0.65.0"
+version = "0.66.0"
 dependencies = [
  "aws-lc-rs",
  "cfg-if",
@@ -2418,7 +2418,7 @@ dependencies = [
 
 [[package]]
 name = "s2n-quic-platform"
-version = "0.65.0"
+version = "0.66.0"
 dependencies = [
  "cfg-if",
  "futures",
@@ -2431,7 +2431,7 @@ dependencies = [
 
 [[package]]
 name = "s2n-quic-rustls"
-version = "0.65.0"
+version = "0.66.0"
 dependencies = [
  "bytes",
  "rustls",
@@ -2444,7 +2444,7 @@ dependencies = [
 
 [[package]]
 name = "s2n-quic-tls"
-version = "0.65.0"
+version = "0.66.0"
 dependencies = [
  "bytes",
  "errno",
@@ -2457,7 +2457,7 @@ dependencies = [
 
 [[package]]
 name = "s2n-quic-tls-default"
-version = "0.65.0"
+version = "0.66.0"
 dependencies = [
  "s2n-quic-rustls",
  "s2n-quic-tls",
@@ -2465,7 +2465,7 @@ dependencies = [
 
 [[package]]
 name = "s2n-quic-transport"
-version = "0.65.0"
+version = "0.66.0"
 dependencies = [
  "bytes",
  "futures-channel",
diff --git a/rpxy-lib/Cargo.toml b/rpxy-lib/Cargo.toml
index ad49fc2..542c430 100644
--- a/rpxy-lib/Cargo.toml
+++ b/rpxy-lib/Cargo.toml
@@ -94,11 +94,11 @@ tracing = { version = "0.1.41" }
 quinn = { version = "0.11.9", optional = true }
 h3 = { version = "0.0.8", features = ["tracing"], optional = true }
 h3-quinn = { version = "0.0.10", optional = true }
-s2n-quic = { version = "1.65.0", path = "../submodules/s2n-quic/quic/s2n-quic/", default-features = false, features = [
+s2n-quic = { version = "1.66.0", path = "../submodules/s2n-quic/quic/s2n-quic/", default-features = false, features = [
   "provider-tls-rustls",
 ], optional = true }
-s2n-quic-core = { version = "0.65.0", path = "../submodules/s2n-quic/quic/s2n-quic-core", default-features = false, optional = true }
-s2n-quic-rustls = { version = "0.65.0", path = "../submodules/s2n-quic/quic/s2n-quic-rustls", optional = true }
+s2n-quic-core = { version = "0.66.0", path = "../submodules/s2n-quic/quic/s2n-quic-core", default-features = false, optional = true }
+s2n-quic-rustls = { version = "0.66.0", path = "../submodules/s2n-quic/quic/s2n-quic-rustls", optional = true }
 s2n-quic-h3 = { path = "../submodules/s2n-quic/quic/s2n-quic-h3/", features = [
   "tracing",
 ], optional = true }
diff --git a/submodules/s2n-quic b/submodules/s2n-quic
index 9b38be4..19d80dc 160000
--- a/submodules/s2n-quic
+++ b/submodules/s2n-quic
@@ -1 +1 @@
-Subproject commit 9b38be403219bec40f975ee8e27fdbd86cf3eebf
+Subproject commit 19d80dc650f30d2488f97e5cc0f4935927908782