diff --git a/Dockerfile.source b/Dockerfile.source
index e112e728..4b0d9d51 100644
--- a/Dockerfile.source
+++ b/Dockerfile.source
@@ -40,6 +40,7 @@ RUN go install github.com/fullstorydev/grpcurl/cmd/grpcurl@latest
 # Build and install qclient
 WORKDIR /opt/ceremonyclient/client
 
+RUN go mod tidy
 RUN go build -o qclient ./main.go
 
 # Allows exporting single binary