diff --git a/api/requirements.txt b/api/requirements.txt
index 043251e..bf9b82a 100644
--- a/api/requirements.txt
+++ b/api/requirements.txt
@@ -4,7 +4,7 @@ fastapi[all]==0.52.0
 pyserini==0.9.0.0
 freezegun==0.3.15
 hnswlib==0.3.4
-httpx==0.12.1
+httpx==0.23.0
 python-dotenv==0.12.0
 pytest==5.4.1
 pytest-mock==3.1.0