diff --git a/Cargo.lock b/Cargo.lock
index 450b874..b28117b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -481,15 +481,16 @@ checksum = "4f94fa09c2aeea5b8839e414b7b841bf429fd25b9c522116ac97ee87856d88b2"
 
 [[package]]
 name = "elasticsearch"
-version = "8.17.0-alpha.1"
+version = "9.1.0-alpha.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52be486463ef0b89e45191803db146387d5f594c26a0c8790807bb3e988ec5f6"
+checksum = "12bb303aa6e1d28c0c86b6fbfe484fd0fd3f512629aeed1ac4f6b85f81d9834a"
 dependencies = [
  "base64",
  "bytes",
  "dyn-clone",
  "flate2",
  "lazy_static",
+ "parking_lot",
  "percent-encoding",
  "reqwest",
  "rustc_version",
diff --git a/Cargo.toml b/Cargo.toml
index e69712d..bbe4094 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -39,7 +39,7 @@ version = "4.5.37"
 [dependencies.elasticsearch]
 default-features = false
 features = ["native-tls"]
-version = "8.17.0-alpha.1"
+version = "9.1.0-alpha.1"
 
 [dependencies.hyper]
 default-features = false