diff --git a/Dockerfile b/Dockerfile
index 3e07178..f4b5689 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ RUN apk upgrade --no-cache \
  && ./build/build.sh
 
 # STEP 2 build the image including only the binary
-FROM alpine:3.14.3@sha256:635f0aa53d99017b38d1a0aa5b2082f7812b03e3cdb299103fe77b5c8a07f1d2
+FROM alpine:3.15.0@sha256:21a3deaa0d32a8057914f36584b5288d2e5ecc984380bc0118285c70fa8c9300
 
 RUN apk upgrade --no-cache && apk add libc6-compat device-mapper findutils zfs \
  && rm -rf /var/cache/apk/*