diff --git a/Cargo.lock b/Cargo.lock
index 30da4f0..3550179 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -113,6 +113,12 @@ dependencies = [
  "bytemuck",
 ]
 
+[[package]]
+name = "atomic-waker"
+version = "1.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1505bd5d3d116872e7271a6d4e16d81d0c8570876c8de68093a09ac269d8aac0"
+
 [[package]]
 name = "backon"
 version = "1.5.1"
@@ -441,6 +447,25 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "h2"
+version = "0.4.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "17da50a276f1e01e0ba6c029e47b7100754904ee8a278f886546e98575380785"
+dependencies = [
+ "atomic-waker",
+ "bytes",
+ "fnv",
+ "futures-core",
+ "futures-sink",
+ "http",
+ "indexmap",
+ "slab",
+ "tokio",
+ "tokio-util",
+ "tracing",
+]
+
 [[package]]
 name = "hashbrown"
 version = "0.15.4"
@@ -502,6 +527,7 @@ dependencies = [
  "bytes",
  "futures-channel",
  "futures-util",
+ "h2",
  "http",
  "http-body",
  "httparse",
@@ -1014,6 +1040,7 @@ dependencies = [
  "base64",
  "bytes",
  "futures-core",
+ "h2",
  "http",
  "http-body",
  "http-body-util",
@@ -1339,6 +1366,19 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "tokio-util"
+version = "0.7.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "66a539a9ad6d5d281510d5bd368c973d636c02dbf8a67300bfb6b950696ad7df"
+dependencies = [
+ "bytes",
+ "futures-core",
+ "futures-sink",
+ "pin-project-lite",
+ "tokio",
+]
+
 [[package]]
 name = "toml"
 version = "0.8.23"
diff --git a/Cargo.toml b/Cargo.toml
index f35bd00..e36baa0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ backon = "1"
 clap = { version = "4.5", features = ["derive"] }
 futures = "0.3"
 regex = "1.11"
-reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls"] }
+reqwest = { version = "0.12", default-features = false, features = ["json", "rustls-tls","http2"] }
 serde_json = "1.0"
 tokio = { version = "1.46", features = [
     "macros",
diff --git a/src/config/basic_client.rs b/src/config/basic_client.rs
index 1ca5758..4581d5c 100644
--- a/src/config/basic_client.rs
+++ b/src/config/basic_client.rs
@@ -11,7 +11,7 @@ pub fn client_builder(config: &KeyCheckerConfig) -> Result<Client, reqwest::Erro
     let mut builder = Client::builder()
         .timeout(Duration::from_secs(config.timeout_sec))
         .pool_max_idle_per_host(pool_size)
-        .pool_idle_timeout(Duration::from_secs(30));
+        .http2_prior_knowledge();
 
     if let Some(ref proxy_url) = config.proxy {
         builder = builder.proxy(reqwest::Proxy::all(proxy_url.clone())?);