Fix CVEs by baseimage bump

Related-PROD: PRODX-23020
Change-Id: I3c1c7740bc621f10e956009e7ec56c0e72f19b35
diff --git a/Dockerfile b/Dockerfile
index 7249d3c..cdf9d4f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
-FROM python:3.9.2-alpine3.13
+FROM python:3.9.12-alpine3.15
 
-LABEL build_date="2022-04-13"
+LABEL build_date="2022-05-13"
 
 RUN apk upgrade --update