diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9beeae8..060fced 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,5 +12,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - uses: actions/setup-go@v2
+      with:
+        go-version: '1.17'
     - run: go version
     - run: go test -v ./...
diff --git a/Dockerfile b/Dockerfile
index 8fd1f79..bea6097 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,10 @@
-FROM golang:1.16-alpine as builder
+FROM golang:1.17-alpine as builder
 RUN apk add --no-cache git
 WORKDIR /go/croc
 COPY . .
 RUN go build -v -ldflags="-s -w"
 
-FROM alpine:latest 
+FROM alpine:latest
 EXPOSE 9009
 EXPOSE 9010
 EXPOSE 9011
diff --git a/README.md b/README.md
index 073b69e..0044be9 100644
--- a/README.md
+++ b/README.md
@@ -101,7 +101,7 @@ On FreeBSD you can install with `pkg`:
 pkg install croc
 ```
 
-Or, you can [install Go](https://golang.org/dl/) and build from source (requires Go 1.15+): 
+Or, you can [install Go](https://golang.org/dl/) and build from source (requires Go 1.17+): 
 
 ```
 go install github.com/schollz/croc/v9@latest
diff --git a/go.mod b/go.mod
index 1e0a994..c54d390 100644
--- a/go.mod
+++ b/go.mod
@@ -1,27 +1,38 @@
 module github.com/schollz/croc/v9
 
-go 1.13
+go 1.17
 
 require (
-	github.com/OneOfOne/xxhash v1.2.5 // indirect
 	github.com/cespare/xxhash v1.1.0
-	github.com/cpuguy83/go-md2man/v2 v2.0.1 // indirect
 	github.com/denisbrodbeck/machineid v1.0.1
 	github.com/kalafut/imohash v1.0.2
-	github.com/kr/pretty v0.1.0 // indirect
 	github.com/schollz/cli/v2 v2.2.1
 	github.com/schollz/logger v1.2.0
 	github.com/schollz/mnemonicode v1.0.1
 	github.com/schollz/pake/v3 v3.0.2
 	github.com/schollz/peerdiscovery v1.6.9
 	github.com/schollz/progressbar/v3 v3.8.3
-	github.com/spaolacci/murmur3 v1.1.0 // indirect
 	github.com/stretchr/testify v1.6.1
-	github.com/tscholl2/siec v0.0.0-20210707234609-9bdfc483d499 // indirect
-	github.com/twmb/murmur3 v1.1.6 // indirect
 	golang.org/x/crypto v0.0.0-20210921155107-089bfa567519
 	golang.org/x/net v0.0.0-20210929193557-e81a3d93ecf6
+)
+
+require (
+	github.com/OneOfOne/xxhash v1.2.5 // indirect
+	github.com/cpuguy83/go-md2man/v2 v2.0.1 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/kr/pretty v0.1.0 // indirect
+	github.com/mattn/go-runewidth v0.0.13 // indirect
+	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/rivo/uniseg v0.2.0 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/spaolacci/murmur3 v1.1.0 // indirect
+	github.com/tscholl2/siec v0.0.0-20210707234609-9bdfc483d499 // indirect
+	github.com/twmb/murmur3 v1.1.6 // indirect
+	golang.org/x/sys v0.0.0-20211002104244-808efd93c36d // indirect
 	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
 	golang.org/x/text v0.3.7 // indirect
 	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
 )