diff --git a/LICENSE b/LICENSE
index 096f5e1..ddb8c03 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2024 Jun Kurihara
+Copyright (c) 2025 Jun Kurihara
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/rpxy-lib/Cargo.toml b/rpxy-lib/Cargo.toml
index 534f847..e9b76b2 100644
--- a/rpxy-lib/Cargo.toml
+++ b/rpxy-lib/Cargo.toml
@@ -94,11 +94,11 @@ tracing = { version = "0.1.41" }
 quinn = { version = "0.11.6", optional = true }
 h3 = { version = "0.0.6", features = ["tracing"], optional = true }
 h3-quinn = { version = "0.0.7", optional = true }
-s2n-quic = { version = "1.51.0", path = "../submodules/s2n-quic/quic/s2n-quic/", default-features = false, features = [
+s2n-quic = { version = "1.52.0", path = "../submodules/s2n-quic/quic/s2n-quic/", default-features = false, features = [
   "provider-tls-rustls",
 ], optional = true }
-s2n-quic-core = { version = "0.51.0", path = "../submodules/s2n-quic/quic/s2n-quic-core", default-features = false, optional = true }
-s2n-quic-rustls = { version = "0.51.0", path = "../submodules/s2n-quic/quic/s2n-quic-rustls", optional = true }
+s2n-quic-core = { version = "0.52.0", path = "../submodules/s2n-quic/quic/s2n-quic-core", default-features = false, optional = true }
+s2n-quic-rustls = { version = "0.52.0", 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 b49cb51..6115fa4 160000
--- a/submodules/s2n-quic
+++ b/submodules/s2n-quic
@@ -1 +1 @@
-Subproject commit b49cb517d0256864a9382f04fedd0e9f71531d85
+Subproject commit 6115fa43e96ce3745f3457f940d64606642224ee