diff --git a/.circleci/config.yml b/.circleci/config.yml
index 86680ab..9161d02 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,7 +1,7 @@
 defaults: &defaults
   working_directory: /go/src/moul.io/fs-bundler
   docker:
-    - image: circleci/golang:1.12
+    - image: circleci/golang:1.17
   environment:
     GO111MODULE: "on"
 
diff --git a/Dockerfile b/Dockerfile
index 64b5875..199d74d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # build
-FROM            golang:1.12-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/fs-bundler
@@ -9,7 +9,7 @@ COPY            . ./
 RUN             make install
 
 # minimalist runtime
-FROM            alpine:3.10
+FROM            alpine:3.15
 COPY            --from=builder /go/bin/fs-bundler /bin/
 ENTRYPOINT      ["/bin/fs-bundler"]
 CMD             []
diff --git a/go.mod b/go.mod
index 9a8e2bf..59ce93b 100644
--- a/go.mod
+++ b/go.mod
@@ -3,8 +3,8 @@ module moul.io/fs-bundler
 go 1.12
 
 require (
-	github.com/mattn/go-zglob v0.0.1
-	github.com/pkg/errors v0.8.1
-	gopkg.in/urfave/cli.v2 v2.0.0-20180128182452-d3ae77c26ac8
+	github.com/mattn/go-zglob v0.0.3
+	github.com/pkg/errors v0.9.1
+	gopkg.in/urfave/cli.v2 v2.6.0
 	gopkg.in/yaml.v3 v3.0.0-20190709130402-674ba3eaed22
 )