Always use the up-to-date go tools when creating prow-tests image
@@ -21,10 +21,10 @@ ENV DEBIAN_FRONTEND noninteractive
RUN gcloud components install docker-credential-gcr
RUN docker-credential-gcr configure-docker
RUN apt-get install -y uuid-runtime # for uuidgen
-RUN go get github.com/google/go-containerregistry/cmd/ko
-RUN go get github.com/golang/dep/cmd/dep
-RUN go get github.com/mattmoor/dep-collector
-RUN go get github.com/google/licenseclassifier
+RUN go get -u github.com/google/go-containerregistry/cmd/ko
+RUN go get -u github.com/golang/dep/cmd/dep
+RUN go get -u github.com/mattmoor/dep-collector
+RUN go get -u github.com/google/licenseclassifier
# Add our scripts
ADD scripts/library.sh .
