diff --git a/.drone.yml b/.drone.yml
index 74dbf107b..0531fb4a5 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -404,7 +404,7 @@ steps:
 
   - name: update
     pull: default
-    image: alpine:3.12
+    image: alpine:3.13
     commands:
       - ./build/update-locales.sh
 
diff --git a/Dockerfile b/Dockerfile
index 8800738bd..1376dbdda 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,7 @@
 
 ###################################
 #Build stage
-FROM golang:1.15-alpine3.12 AS build-env
+FROM golang:1.15-alpine3.13 AS build-env
 
 ARG GOPROXY
 ENV GOPROXY ${GOPROXY:-direct}
@@ -22,7 +22,7 @@ WORKDIR ${GOPATH}/src/code.gitea.io/gitea
 RUN if [ -n "${GITEA_VERSION}" ]; then git checkout "${GITEA_VERSION}"; fi \
  && make clean-all build
 
-FROM alpine:3.12
+FROM alpine:3.13
 LABEL maintainer="maintainers@gitea.io"
 
 EXPOSE 22 3000
diff --git a/Dockerfile.rootless b/Dockerfile.rootless
index 7dbd8b021..d20d4d8b8 100644
--- a/Dockerfile.rootless
+++ b/Dockerfile.rootless
@@ -1,7 +1,7 @@
 
 ###################################
 #Build stage
-FROM golang:1.15-alpine3.12 AS build-env
+FROM golang:1.15-alpine3.13 AS build-env
 
 ARG GOPROXY
 ENV GOPROXY ${GOPROXY:-direct}
@@ -22,7 +22,7 @@ WORKDIR ${GOPATH}/src/code.gitea.io/gitea
 RUN if [ -n "${GITEA_VERSION}" ]; then git checkout "${GITEA_VERSION}"; fi \
  && make clean-all build
 
-FROM alpine:3.12
+FROM alpine:3.13
 LABEL maintainer="maintainers@gitea.io"
 
 EXPOSE 2222 3000