diff --git a/.travis.yml b/.travis.yml
index 4cfe98c2424d60b3a50d870dc0da5df2ee9243ba..5163d693fc757ec0c13d134e9d4cabd6cc7c85d7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,7 +10,6 @@ env:
   global:
     - GOTFLAGS="-race"
   matrix:
-    - BUILD_DEPTYPE=gx
     - BUILD_DEPTYPE=gomod
 
 
@@ -24,7 +23,6 @@ script:
 
 cache:
   directories:
-    - $GOPATH/src/gx
     - $GOPATH/pkg/mod
     - $HOME/.cache/go-build
 
diff --git a/cid-fmt/main_test.go b/cid-fmt/main_test.go
index ce66c0ac4fbbd4a748845f09bea901484e8ed569..5609cd2666fd976c29c08c00e83322497d95fdfe 100644
--- a/cid-fmt/main_test.go
+++ b/cid-fmt/main_test.go
@@ -9,7 +9,7 @@ import (
 
 func TestCidConv(t *testing.T) {
 	cidv0 := "QmUNLLsPACCz1vLxQVkXqqLX5R1X345qqfHbsf67hvA3Nn"
-	cidv1 := "zdj7WbTaiJT1fgatdet9Ei9iDB5hdCxkbVyhyh8YTUnXMiwYi"
+	cidv1 := "bafybeiczsscdsbs7ffqz55asqdf3smv6klcw3gofszvwlyarci47bgf354"
 	cid, err := c.Decode(cidv0)
 	if err != nil {
 		t.Fatal(err)
@@ -19,7 +19,7 @@ func TestCidConv(t *testing.T) {
 		t.Fatal(err)
 	}
 	if cid.String() != cidv1 {
-		t.Fatal("conversion failure")
+		t.Fatalf("conversion failure: %s != %s", cid, cidv1)
 	}
 	cid, err = toCidV0(cid)
 	if err != nil {
@@ -33,7 +33,7 @@ func TestCidConv(t *testing.T) {
 
 func TestBadCidConv(t *testing.T) {
 	// this cid is a raw leaf and should not be able to convert to cidv0
-	cidv1 := "zb2rhhzX7uSKrtQ2ZZXFAabKiKFYZrJqKY2KE1cJ8yre2GSWZ"
+	cidv1 := "bafkreifit7vvfkf2cwwzvyycdczm5znbdbqx54ab6shbesvwgkwthdf77y"
 	cid, err := c.Decode(cidv1)
 	if err != nil {
 		t.Fatal(err)
diff --git a/go.mod b/go.mod
index 73ce4c9194716559297d529861852b8d00dcc0db..31686601d3800d353175a968a25a925de81e65c6 100644
--- a/go.mod
+++ b/go.mod
@@ -5,3 +5,5 @@ require (
 	github.com/multiformats/go-multibase v0.0.1
 	github.com/multiformats/go-multihash v0.0.1
 )
+
+go 1.12
diff --git a/package.json b/package.json
deleted file mode 100644
index a286ee0efb9b460d9800139e5ef55183f42c2da2..0000000000000000000000000000000000000000
--- a/package.json
+++ /dev/null
@@ -1,34 +0,0 @@
-{
-  "author": "kevina",
-  "bugs": {},
-  "gx": {
-    "dvcsimport": "github.com/ipfs/go-cidutil"
-  },
-  "gxDependencies": [
-    {
-      "author": "multiformats",
-      "hash": "QmerPMzPk1mJVowm8KgmoknWa4yCYvvugMPsgWmDNUvDLW",
-      "name": "go-multihash",
-      "version": "1.0.9"
-    },
-    {
-      "author": "whyrusleeping",
-      "hash": "QmekxXDhCxCJRNuzmHreuaT3BsuJcsjcXWNrtV9C8DRHtd",
-      "name": "go-multibase",
-      "version": "0.3.0"
-    },
-    {
-      "author": "whyrusleeping",
-      "hash": "QmTbxNB1NwDesLmKTscr4udL2tVP7MaxvXnD1D9yX7g3PN",
-      "name": "go-cid",
-      "version": "0.9.3"
-    }
-  ],
-  "gxVersion": "0.12.1",
-  "language": "go",
-  "license": "",
-  "name": "go-cidutil",
-  "releaseCmd": "git commit -a -m \"gx publish $VERSION\"",
-  "version": "0.2.1"
-}
-