diff --git a/CHANGELOG.md b/CHANGELOG.md
index afbce56..b1f4e8a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## [dev]
+
+- Switch to go mods - go (>= 1.11 required)
+
+
 ## [0.0.3]
 
 - Detect & skip animated GIFs
diff --git a/Makefile b/Makefile
index 623867a..bf5e5f8 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,6 @@ build = echo "\n\nBuilding $(1)-$(2)" && GOOS=$(1) GOARCH=$(2) go build ${LDFLAG
 	&& bzip2 dist/goptimize_${VERSION}_$(1)_$(2)
 
 goptimize: *.go
-	go get github.com/disintegration/imaging golang.org/x/image/bmp golang.org/x/image/tiff github.com/axllent/gitrel github.com/spf13/pflag
 	go build ${LDFLAGS} -o goptimize
 	rm -rf /tmp/go-*
 
@@ -16,7 +15,6 @@ clean:
 release:
 	mkdir -p dist
 	rm -f dist/goptimize_${VERSION}_*
-	go get github.com/disintegration/imaging golang.org/x/image/bmp golang.org/x/image/tiff github.com/axllent/gitrel github.com/spf13/pflag
 	$(call build,linux,amd64)
 	$(call build,linux,386)
 	$(call build,linux,arm)
diff --git a/README.md b/README.md
index 7ea00cc..9b8f044 100644
--- a/README.md
+++ b/README.md
@@ -57,11 +57,16 @@ Options:
 ## Install
 
 Download the appropriate binary from the [releases](https://github.com/axllent/goptimize/releases/latest), or if you have golang installed 
+
+
+### Build requirements
+
+Go >= 1.11 required.
+
 ```
 go get github.com/axllent/goptimize
 ```
 
-
 ## TODO
 
 Some ideas for the future:
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..cc6b4c9
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,10 @@
+module github.com/axllent/goptimize
+
+go 1.13
+
+require (
+	github.com/axllent/gitrel v0.0.0-20190920100556-8fb3317ae1cd
+	github.com/disintegration/imaging v1.6.1
+	github.com/spf13/pflag v1.0.5
+	golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..212a7c9
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,10 @@
+github.com/axllent/gitrel v0.0.0-20190920100556-8fb3317ae1cd h1:cJgMzRxCEzJiI95DxIOgrpCxwBqcUQU0foCuGTB1F4o=
+github.com/axllent/gitrel v0.0.0-20190920100556-8fb3317ae1cd/go.mod h1:p7Ab0oyyqKbcVmclkdRR9+pw8b5RZlMlDXQ6iplJiQ4=
+github.com/disintegration/imaging v1.6.1 h1:JnBbK6ECIZb1NsWIikP9pd8gIlTIRx7fuDNpU9fsxOE=
+github.com/disintegration/imaging v1.6.1/go.mod h1:xuIt+sRxDFrHS0drzXUlCJthkJ8k7lkkUojDSR247MQ=
+github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
+github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+golang.org/x/image v0.0.0-20180708004352-c73c2afc3b81/go.mod h1:ux5Hcp/YLpHSI86hEcLt0YII63i6oz57MZXIpbrjZUs=
+golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8 h1:hVwzHzIUGRjiF7EcUjqNxk3NCfkPxbDKRdnNE1Rpg0U=
+golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=