diff --git a/Cargo.lock b/Cargo.lock
index 44edb3795..05a8cb233 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1055,7 +1055,7 @@ dependencies = [
  "filetime",
  "foreign-types-shared",
  "futures",
- "h2 0.4.2",
+ "h2 0.4.3",
  "hickory-client",
  "hickory-proto",
  "hickory-resolver",
@@ -2265,9 +2265,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "31d030e59af851932b72ceebadf4a2b5986dba4c3b99dd2493f8273a0f151943"
+checksum = "51ee2dd2e4f378392eeff5d51618cd9a63166a2513846bbc55f21cfacd9199d4"
 dependencies = [
  "bytes",
  "fnv",
@@ -2670,7 +2670,7 @@ dependencies = [
  "bytes",
  "futures-channel",
  "futures-util",
- "h2 0.4.2",
+ "h2 0.4.3",
  "http 1.1.0",
  "http-body 1.0.0",
  "httparse",
diff --git a/clash_lib/Cargo.toml b/clash_lib/Cargo.toml
index 81d45c526..7e074c247 100644
--- a/clash_lib/Cargo.toml
+++ b/clash_lib/Cargo.toml
@@ -27,7 +27,7 @@ lru_time_cache = "0.11"
 hyper = { version = "0.14.28", features = ["http1","http2","client", "server", "tcp"] }
 http = { version = "1.1" }
 httparse = "1.8.0"
-h2 = "0.4.2"
+h2 = "0.4.3"
 prost = "0.12"
 tower = { version = "0.4", features = ["util"] }
 libc = "0.2"