diff --git a/Dockerfile b/Dockerfile
index 20ab2a8..5998357 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:3.18.4@sha256:eece025e432126ce23f223450a0326fbebde39cdf496a85d8c016293fc851978
+FROM alpine:3.18.5@sha256:eb37f58646a901dc7727cf448cae36daaefaba79de33b5058dab79aa4c04aefb
 COPY --from=build /app/concourse-github-app-token /opt/resource/resource
 COPY opt/resource opt/resource