diff --git a/Dockerfile b/Dockerfile
index 94262752..ef700dee 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,6 @@ LABEL maintainer="aichy@sf.com"
 ARG GOPROXY
 # ENV GOPROXY ${GOPROXY:-direct}
 ENV GOPROXY=https://proxy.golang.com.cn,direct
-ENV GOPROXY=https://proxy.golang.com.cn,direct
 
 ENV GOPATH /go
 ENV GOROOT /usr/local/go
diff --git a/go.mod b/go.mod
index 43a1ae31..322936e8 100644
--- a/go.mod
+++ b/go.mod
@@ -148,3 +148,5 @@ require (
 )
 
 replace lukechampine.com/uint128 v1.1.1 => github.com/aichy126/uint128 v1.1.1
+
+replace modernc.org/cc/v3 v3.40.0 => gitlab.com/cznic/cc/v3 v3.40.0
diff --git a/go.sum b/go.sum
index 5b6bc537..10c31cc4 100644
--- a/go.sum
+++ b/go.sum
@@ -734,6 +734,8 @@ github.com/yuin/goldmark v1.4.13 h1:fVcFKWvrslecOb/tg+Cc05dkeYx540o0FuFt3nUVDoE=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
 github.com/zenazn/goji v0.9.0/go.mod h1:7S9M489iMyHBNxwZnk9/EHS098H4/F6TATF2mIxtB1Q=
 github.com/ziutek/mymysql v1.5.4/go.mod h1:LMSpPZ6DbqWFxNCHW77HeMg9I646SAhApZ/wKdgO/C0=
+gitlab.com/cznic/cc/v3 v3.40.0 h1:3yn6qVCeHjTSJio35QIhNsD5POKm7ETHXS54yKqzDEo=
+gitlab.com/cznic/cc/v3 v3.40.0/go.mod h1:/bTg4dnWkSXowUO6ssQKnOV0yMVxDYNIsIrzqTFDGH0=
 go.etcd.io/bbolt v1.3.3/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/etcd v0.0.0-20191023171146-3cf2f69b5738/go.mod h1:dnLIgRNXwCJa5e+c6mIZCrds/GIG4ncV9HhK5PX7jPg=
 go.opencensus.io v0.20.1/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
@@ -1228,8 +1230,6 @@ modernc.org/cc/v3 v3.35.15/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g
 modernc.org/cc/v3 v3.35.16/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
 modernc.org/cc/v3 v3.35.17/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
 modernc.org/cc/v3 v3.35.18/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
-modernc.org/cc/v3 v3.40.0 h1:P3g79IUS/93SYhtoeaHW+kRCIrYaxJ27MFPv+7kaTOw=
-modernc.org/cc/v3 v3.40.0/go.mod h1:/bTg4dnWkSXowUO6ssQKnOV0yMVxDYNIsIrzqTFDGH0=
 modernc.org/ccgo/v3 v3.9.5/go.mod h1:umuo2EP2oDSBnD3ckjaVUXMrmeAw8C8OSICVa0iFf60=
 modernc.org/ccgo/v3 v3.10.0/go.mod h1:c0yBmkRFi7uW4J7fwx/JiijwOjeAeR2NoSaRVFPmjMw=
 modernc.org/ccgo/v3 v3.11.0/go.mod h1:dGNposbDp9TOZ/1KBxghxtUp/bzErD0/0QW4hhSaBMI=