diff --git a/mamba/example/external-chaincode/fabcar/go.mod b/mamba/example/external-chaincode/fabcar/go.mod
index bb2d208..bf776cf 100644
--- a/mamba/example/external-chaincode/fabcar/go.mod
+++ b/mamba/example/external-chaincode/fabcar/go.mod
@@ -1,12 +1,10 @@
 module github.com/fabcar
-  
+
 go 1.14
 
 require (
-        github.com/hyperledger/fabric-chaincode-go v0.0.0-20200424173110-d7076418f212
-        github.com/hyperledger/fabric-contract-api-go v1.1.0
-        golang.org/x/net v0.0.0-20200202094626-16171245cfb2 // indirect
-        golang.org/x/sys v0.0.0-20200212091648-12a6c2dcc1e4 // indirect
-        golang.org/x/text v0.3.2 // indirect
-        google.golang.org/genproto v0.0.0-20200218151345-dad8c97a84f5 // indirect
-)
\ No newline at end of file
+	github.com/hyperledger/fabric-chaincode-go v0.0.0-20200424173110-d7076418f212
+	github.com/hyperledger/fabric-contract-api-go v1.1.0
+	golang.org/x/net v0.7.0 // indirect
+	google.golang.org/genproto v0.0.0-20200218151345-dad8c97a84f5 // indirect
+)