diff --git a/ch09/requirements.txt b/ch09/requirements.txt
index 85075f7c..5a9159e5 100644
--- a/ch09/requirements.txt
+++ b/ch09/requirements.txt
@@ -37,7 +37,7 @@ Pillow==9.2.0
 pluggy==1.0.0
 py==1.11.0
 pyasn1==0.4.8
-pycares==4.2.1
+pycares==4.9.0
 pycparser==2.21
 pydantic==1.9.1
 pymongo==4.1.1
@@ -55,6 +55,6 @@ tomli==2.0.1
 typing_extensions==4.3.0
 tzdata==2022.1
 ujson==5.4.0
-urllib3==1.26.11
+urllib3==2.5.0
 uvicorn==0.18.2
 yarl==1.8.1