diff --git a/src/shadowbox/integration_test/client/Dockerfile b/src/shadowbox/integration_test/client/Dockerfile
index 54897312..f4b89cdd 100644
--- a/src/shadowbox/integration_test/client/Dockerfile
+++ b/src/shadowbox/integration_test/client/Dockerfile
@@ -16,6 +16,6 @@ FROM golang:1-alpine
 
 # curl for fetching pages using the local proxy
 RUN apk add --no-cache curl git
-RUN go get github.com/shadowsocks/go-shadowsocks2
+RUN go install github.com/shadowsocks/go-shadowsocks2@v0.1.5
 
 ENTRYPOINT [ "sh" ]