diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ff94704..85de049 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,10 +1,10 @@
 name: Etcd Client Test
 run-name: ${{ github.actor }} is testing out etcd client
 on:
-  pull_request_target:
-    branches: ['**']
+  pull_request:
+    branches: [ '**' ]
   push:
-    branches: ['**']
+    branches: [ '**' ]
 
 jobs:
   regression-test:
@@ -12,12 +12,12 @@ jobs:
     steps:
       - run: echo "Get latest etcd from docker hub"
       - run: docker --version
-      - run: sudo docker pull bitnami/etcd:latest 
+      - run: sudo docker pull bitnami/etcd:latest
       - run: sudo docker network create app-tier --driver bridge
       - run: sudo docker run -d --name Etcd-server --network app-tier --publish 2379:2379 --publish 2380:2380 --env ALLOW_NONE_AUTHENTICATION=yes --env ETCD_ADVERTISE_CLIENT_URLS=http://etcd-server:2379 bitnami/etcd:latest
       - run: sudo apt install -y protobuf-compiler libprotobuf-dev
       - name: Check out repository code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - run: cargo --version --verbose
       - run: rustc --version --verbose
       - name: format check
diff --git a/Cargo.toml b/Cargo.toml
index 911369b..5816c68 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,29 +13,30 @@ keywords = ["etcd", "v3", "api", "client", "async"]
 
 [features]
 tls = ["tonic/tls"]
-tls-openssl = ["openssl", "hyper-openssl", "hyper"]
+tls-openssl = ["openssl", "hyper-openssl", "hyper", "hyper-util"]
 tls-openssl-vendored = ["tls-openssl", "openssl/vendored"]
 tls-roots = ["tls", "tonic/tls-roots"]
 pub-response-field = ["visible"]
 
 [dependencies]
-tonic = "0.11.0"
-prost = "0.12.0"
-tokio = "1.38.0"
-tokio-stream = "0.1.15"
-tower-service = "0.3.2"
-http = "0.2.12"
+tonic = "0.12"
+prost = "0.13"
+tokio = "1.38"
+tokio-stream = "0.1"
+tower-service = "0.3"
+http = "1.1"
 visible = { version = "0.0.1", optional = true }
-tower = { version = "0.4.13", default-features = false }
+tower = { version = "0.4", default-features = false }
 openssl = { version = "0.10", optional = true }
-hyper = { version = "0.14.26", features = ["h2", "client"], optional = true }
-hyper-openssl = { version = "0.9", optional = true }
+hyper = { version = "1.4", features = ["client"], optional = true }
+hyper-openssl = { version = "0.10", features = ["client-legacy", "tokio"], optional = true }
+hyper-util = { version = "0.1", features = ["client-legacy"], optional = true }
 
 [dev-dependencies]
-tokio = { version = "1.38.0", features = ["full"] }
+tokio = { version = "1.38", features = ["full"] }
 
 [build-dependencies]
-tonic-build = { version = "0.11.0", default-features = false, features = ["prost"] }
+tonic-build = { version = "0.12", default-features = false, features = ["prost"] }
 
 [package.metadata.docs.rs]
 features = ["tls", "tls-roots"]
diff --git a/src/openssl_tls/transport.rs b/src/openssl_tls/transport.rs
index d22d8a7..89770ae 100644
--- a/src/openssl_tls/transport.rs
+++ b/src/openssl_tls/transport.rs
@@ -2,8 +2,8 @@ use std::time::Duration;
 
 use super::backoff::{BackOffStatus, BackOffWhenFail};
 use http::{Request, Uri};
-use hyper::client::HttpConnector;
-use hyper_openssl::HttpsConnector;
+use hyper_openssl::client::legacy::HttpsConnector;
+use hyper_util::client::legacy::connect::HttpConnector;
 use openssl::{
     error::ErrorStack,
     pkey::PKey,