diff --git a/task/github-app-token/0.1/Dockerfile b/task/github-app-token/0.1/Dockerfile
index 7bf992043c..5179e36923 100644
--- a/task/github-app-token/0.1/Dockerfile
+++ b/task/github-app-token/0.1/Dockerfile
@@ -1,9 +1,9 @@
-FROM python:3.8-alpine as build
+FROM python:3.12.0a1-alpine as build
 RUN apk update && apk upgrade && pip install -U pip && \
     apk add --update alpine-sdk make gcc python3-dev libffi-dev openssl-dev \
     && rm -rf /var/cache/apk/*
 RUN pip --no-cache-dir install requests jwcrypto
 
-FROM python:3.8-alpine
+FROM python:3.12.0a1-alpine
 COPY --from=build /usr/local/share /usr/local/share
 COPY --from=build /usr/local/lib /usr/local/lib