diff --git a/Dockerfile b/Dockerfile
index c2e81e50c7..4508db5e21 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -27,7 +27,7 @@ COPY . .
 RUN make test build.$ARCH
 
 # final image
-FROM $ARCH/alpine:3.14
+FROM $ARCH/alpine:3.15
 
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
 COPY --from=builder /sigs.k8s.io/external-dns/build/external-dns /bin/external-dns