diff --git a/docs/check.Dockerfile b/docs/check.Dockerfile
index 925a9ae4d..04070b030 100644
--- a/docs/check.Dockerfile
+++ b/docs/check.Dockerfile
@@ -1,5 +1,5 @@
 
-FROM alpine:3.13 as alpine
+FROM alpine:3.14.1 as alpine
 
 RUN apk --no-cache --no-progress add \
     libcurl \
diff --git a/docs/docs.Dockerfile b/docs/docs.Dockerfile
index 177e3f9cc..f439a1db4 100644
--- a/docs/docs.Dockerfile
+++ b/docs/docs.Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.13
+FROM alpine:3.14.1
 
 ENV PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/root/.local/bin
 
diff --git a/exp.Dockerfile b/exp.Dockerfile
index 126727d52..11f825fb0 100644
--- a/exp.Dockerfile
+++ b/exp.Dockerfile
@@ -38,7 +38,7 @@ COPY --from=webui /src/static/ /go/src/github.com/traefik/traefik/static/
 RUN ./script/make.sh generate binary
 
 ## IMAGE
-FROM alpine:3.10
+FROM alpine:3.14.1
 
 RUN apk --no-cache --no-progress add bash curl ca-certificates tzdata \
     && update-ca-certificates \