diff --git a/Dockerfile b/Dockerfile
index 3d9e299..c519884 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM public.ecr.aws/lambda/python:3.9
+FROM public.ecr.aws/lambda/python:3.11
 
 # Copy function code
 COPY . ${LAMBDA_TASK_ROOT}/