diff --git a/Dockerfile b/Dockerfile
index 8804d26..117da48 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
-FROM prom/blackbox-exporter:v0.19.0 as bbe
+FROM prom/blackbox-exporter:v0.21.1 as bbe
 
-FROM alpine:3.14.2
+FROM alpine:3
 
 COPY --from=bbe /bin/blackbox_exporter /bin/blackbox_exporter
 COPY --from=bbe /etc/blackbox_exporter/config.yml /etc/blackbox_exporter/config.yml
@@ -10,4 +10,4 @@ RUN apk add --no-cache libcap \
 
 EXPOSE      9115
 ENTRYPOINT  [ "/bin/blackbox_exporter" ]
-CMD         [ "--config.file=/etc/blackbox_exporter/config.yml" ]
\ No newline at end of file
+CMD         [ "--config.file=/etc/blackbox_exporter/config.yml" ]