diff --git a/Dockerfile b/Dockerfile
index 3fe68b3..e6be2b4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # backend build (api server)
-FROM golang:1.14-alpine AS api-build
+FROM golang:1.15-alpine AS api-build
 RUN apk add --no-cache --update bash dep make git curl g++
 
 COPY ./api /go/src/commento/api/
@@ -8,7 +8,7 @@ RUN make prod -j$(($(nproc) + 1))
 
 
 # frontend build (html, js, css, images)
-FROM node:10-alpine AS frontend-build
+FROM node:12-alpine AS frontend-build
 RUN apk add --no-cache --update bash make python2 g++
 
 COPY ./frontend /commento/frontend
@@ -17,7 +17,7 @@ RUN make prod -j$(($(nproc) + 1))
 
 
 # templates and db build
-FROM alpine:3.9 AS templates-db-build
+FROM alpine:3.13 AS templates-db-build
 RUN apk add --no-cache --update bash make
 
 COPY ./templates /commento/templates
@@ -30,7 +30,7 @@ RUN make prod -j$(($(nproc) + 1))
 
 
 # final image
-FROM alpine:3.7
+FROM alpine:3.13
 RUN apk add --no-cache --update ca-certificates
 
 COPY --from=api-build /go/src/commento/api/build/prod/commento /commento/commento