diff --git a/README.md b/README.md
index 866740ec90cbff540ef5c766481c1718621ac804..0824d519844037fb5458879f45caf0689c81dfe3 100644
--- a/README.md
+++ b/README.md
@@ -67,7 +67,7 @@ This will make sure that dependencies are rewritten to known working versions.
 
 ```go
 // Create a cid from a marshaled string
-c, err := cid.Decode("zdvgqEMYmNeH5fKciougvQcfzMcNjF3Z1tPouJ8C7pc3pe63k")
+c, err := cid.Decode("bafzbeigai3eoy2ccc7ybwjfz5r3rdxqrinwi4rwytly24tdbh6yk7zslrm")
 if err != nil {...}
 
 fmt.Println("Got CID: ", c)
diff --git a/cid.go b/cid.go
index 7565edf6eb2fdcf06752aa6565d3e0123e6b2dc7..6b62d30d7f63daee8405f0a188613b73eb31fa72 100644
--- a/cid.go
+++ b/cid.go
@@ -368,7 +368,7 @@ func (c Cid) String() string {
 	case 0:
 		return c.Hash().B58String()
 	case 1:
-		mbstr, err := mbase.Encode(mbase.Base58BTC, c.Bytes())
+		mbstr, err := mbase.Encode(mbase.Base32, c.Bytes())
 		if err != nil {
 			panic("should not error with hardcoded mbase: " + err.Error())
 		}
diff --git a/cid_test.go b/cid_test.go
index 808bb3a80dafc1ea93f70194ea7ecc07efb13bd2..a1dae640728b80a77f189830f7034a53b5705bc9 100644
--- a/cid_test.go
+++ b/cid_test.go
@@ -438,13 +438,13 @@ func TestHexDecode(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	if c.String() != "zb2rhhFAEMepUBbGyP1k8tGfz7BSciKXP6GHuUeUsJBaK6cqG" {
+	if c.String() != "bafkreie5qrjvaw64n4tjm6hbnm7fnqvcssfed4whsjqxzslbd3jwhsk3mm" {
 		t.Fatal("hash value failed to round trip decoding from hex")
 	}
 }
 
 func ExampleDecode() {
-	encoded := "zb2rhhFAEMepUBbGyP1k8tGfz7BSciKXP6GHuUeUsJBaK6cqG"
+	encoded := "bafkreie5qrjvaw64n4tjm6hbnm7fnqvcssfed4whsjqxzslbd3jwhsk3mm"
 	c, err := Decode(encoded)
 	if err != nil {
 		fmt.Printf("Error: %s", err)
@@ -452,11 +452,11 @@ func ExampleDecode() {
 	}
 
 	fmt.Println(c)
-	// Output: zb2rhhFAEMepUBbGyP1k8tGfz7BSciKXP6GHuUeUsJBaK6cqG
+	// Output: bafkreie5qrjvaw64n4tjm6hbnm7fnqvcssfed4whsjqxzslbd3jwhsk3mm
 }
 
 func TestFromJson(t *testing.T) {
-	cval := "zb2rhhFAEMepUBbGyP1k8tGfz7BSciKXP6GHuUeUsJBaK6cqG"
+	cval := "bafkreie5qrjvaw64n4tjm6hbnm7fnqvcssfed4whsjqxzslbd3jwhsk3mm"
 	jsoncid := []byte(`{"/":"` + cval + `"}`)
 	var c Cid
 	err := json.Unmarshal(jsoncid, &c)
@@ -470,7 +470,7 @@ func TestFromJson(t *testing.T) {
 }
 
 func TestJsonRoundTrip(t *testing.T) {
-	exp, err := Decode("zb2rhhFAEMepUBbGyP1k8tGfz7BSciKXP6GHuUeUsJBaK6cqG")
+	exp, err := Decode("bafkreie5qrjvaw64n4tjm6hbnm7fnqvcssfed4whsjqxzslbd3jwhsk3mm")
 	if err != nil {
 		t.Fatal(err)
 	}