dockerfile no longer worked with 1.16

Dockerfile

@@ -1,7 +1,7 @@
 FROM 		golang:1.16
-WORKDIR		/go
-ADD		. /go/src/github.com/binxio/ssm-get-parameter
-RUN		CGO_ENABLED=0 GOOS=linux go build -ldflags '-extldflags "-static"' github.com/binxio/ssm-get-parameter
+WORKDIR		/app
+ADD		. /app
+RUN		CGO_ENABLED=0 GOOS=linux go build -ldflags '-extldflags "-static"' .
 
 FROM 		scratch
-COPY --from=0		/go/ssm-get-parameter /
+COPY --from=0		/app/ssm-get-parameter /

go.mod

@@ -1,18 +1,3 @@
 module github.com/binxio/ssm-get-parameter
 
-go 1.12
-
-require (
-	github.com/aws/aws-sdk-go v1.29.2
-	github.com/go-ini/ini v1.52.0 // indirect
-	github.com/stretchr/objx v0.2.0 // indirect
-	golang.org/x/crypto v0.0.0-20200214034016-1d94cc7ab1c6 // indirect
-	golang.org/x/mod v0.2.0 // indirect
-	golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e // indirect
-	golang.org/x/sys v0.0.0-20200212091648-12a6c2dcc1e4 // indirect
-	golang.org/x/text v0.3.2 // indirect
-	golang.org/x/tools v0.0.0-20200213224642-88e652f7a869 // indirect
-	golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 // indirect
-	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
-	gopkg.in/yaml.v2 v2.2.8 // indirect
-)
+go 1.16