diff --git a/Dockerfile b/Dockerfile
index 1545abf..332effa 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -36,6 +36,6 @@ COPY --from=java-builder concourse-github-app-token/build/libs/concourse-github-
 COPY reflect-config.json /app/reflect-config.json
 RUN cd /app; native-image --no-fallback --static --libc=musl --enable-https -H:ReflectionConfigurationFiles=reflect-config.json -jar concourse-github-app-token.jar
 
-FROM alpine:3.22.2@sha256:4b7ce07002c69e8f3d704a9c5d6fd3053be500b7f1c69fc0d80990c2ad8dd412
+FROM alpine:3.23.3@sha256:25109184c71bdad752c8312a8623239686a9a2071e8825f20acb8f2198c3f659
 COPY --from=build /app/concourse-github-app-token /opt/resource/resource
 COPY opt/resource opt/resource