diff --git a/Dockerfile b/Dockerfile
index bf855cc..963084a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ ARG             VCS_REF
 ARG             VERSION
 
 # build
-FROM            golang:1.16-alpine as builder
+FROM            golang:1.18-alpine as builder
 RUN             apk add --no-cache git gcc musl-dev make
 ENV             GO111MODULE=on
 WORKDIR         /go/src/moul.io/drunken-bishop
@@ -14,7 +14,7 @@ COPY            . ./
 RUN             make install
 
 # minimalist runtime
-FROM            alpine:3.13
+FROM            alpine:3.16
 LABEL           org.label-schema.build-date=$BUILD_DATE \
                 org.label-schema.name="drunken-bishop" \
                 org.label-schema.description="" \
diff --git a/go.mod b/go.mod
index 429fa51..a4a65a2 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,4 @@ module moul.io/drunken-bishop
 
 go 1.12
 
-require gopkg.in/urfave/cli.v2 v2.0.0-20190806201727-b62605953717
+require gopkg.in/urfave/cli.v2 v2.10.2