diff --git a/pyproject.toml b/pyproject.toml
index c2858162..59c897d4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ keywords = [
     'index-expiry'
 ]
 dependencies = [
-    "es_client==8.19.5"
+    "es_client==9.0.1"
 ]
 
 [project.optional-dependencies]