diff --git a/hack/lib/protoc.sh b/hack/lib/protoc.sh
index 45e163b2f4b..7d4174a4565 100644
--- a/hack/lib/protoc.sh
+++ b/hack/lib/protoc.sh
@@ -27,7 +27,7 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 # $1: Full path to the directory where the api.proto file is
 function kube::protoc::generate_proto() {
   kube::golang::setup_env
-  go install k8s.io/kubernetes/vendor/k8s.io/code-generator/cmd/go-to-protobuf/protoc-gen-gogo
+  GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/go-to-protobuf/protoc-gen-gogo
 
   kube::protoc::check_protoc
 
diff --git a/hack/lib/swagger.sh b/hack/lib/swagger.sh
index 99f11d91268..ba2a59c7f45 100644
--- a/hack/lib/swagger.sh
+++ b/hack/lib/swagger.sh
@@ -53,7 +53,7 @@ EOF
 
   if ! which genswaggertypedocs >/dev/null; then
     # build if needed
-    go install k8s.io/kubernetes/cmd/genswaggertypedocs
+    GO111MODULE=on GOPROXY=off go install k8s.io/kubernetes/cmd/genswaggertypedocs
   fi
 
   genswaggertypedocs -s \
diff --git a/hack/update-codegen.sh b/hack/update-codegen.sh
index aabe0f4d80e..c4bbfb5e9be 100755
--- a/hack/update-codegen.sh
+++ b/hack/update-codegen.sh
@@ -26,11 +26,11 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 
 kube::golang::setup_env
 
-go install k8s.io/kubernetes/pkg/generated/openapi/cmd/models-schema
-go install k8s.io/kubernetes/vendor/k8s.io/code-generator/cmd/client-gen
-go install k8s.io/kubernetes/vendor/k8s.io/code-generator/cmd/lister-gen
-go install k8s.io/kubernetes/vendor/k8s.io/code-generator/cmd/informer-gen
-go install k8s.io/kubernetes/vendor/k8s.io/code-generator/cmd/applyconfiguration-gen
+GO111MODULE=on GOPROXY=off go install k8s.io/kubernetes/pkg/generated/openapi/cmd/models-schema
+GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/client-gen
+GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/lister-gen
+GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/informer-gen
+GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/applyconfiguration-gen
 
 modelsschema=$(kube::util::find-binary "models-schema")
 clientgen=$(kube::util::find-binary "client-gen")
diff --git a/hack/update-generated-kms-dockerized.sh b/hack/update-generated-kms-dockerized.sh
index 66709da3b06..883325e6b4f 100755
--- a/hack/update-generated-kms-dockerized.sh
+++ b/hack/update-generated-kms-dockerized.sh
@@ -24,7 +24,7 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 
 kube::golang::setup_env
 
-go install k8s.io/kubernetes/vendor/k8s.io/code-generator/cmd/go-to-protobuf/protoc-gen-gogo
+GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/go-to-protobuf/protoc-gen-gogo
 
 if [[ -z "$(which protoc)" || "$(protoc --version)" != "libprotoc 3."* ]]; then
   echo "Generating protobuf requires protoc 3.0.0-beta1 or newer. Please download and"
diff --git a/hack/update-generated-protobuf-dockerized.sh b/hack/update-generated-protobuf-dockerized.sh
index 32fcb45dae4..292db78f074 100755
--- a/hack/update-generated-protobuf-dockerized.sh
+++ b/hack/update-generated-protobuf-dockerized.sh
@@ -28,8 +28,8 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 
 kube::golang::setup_env
 
-go install k8s.io/kubernetes/vendor/k8s.io/code-generator/cmd/go-to-protobuf
-go install k8s.io/kubernetes/vendor/k8s.io/code-generator/cmd/go-to-protobuf/protoc-gen-gogo
+GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/go-to-protobuf
+GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/go-to-protobuf/protoc-gen-gogo
 
 if [[ -z "$(which protoc)" || "$(protoc --version)" != "libprotoc 3."* ]]; then
   echo "Generating protobuf requires protoc 3.0.0-beta1 or newer. Please download and"
diff --git a/hack/update-generated-runtime-dockerized.sh b/hack/update-generated-runtime-dockerized.sh
index c63eff7cf11..fcad6d1fae1 100755
--- a/hack/update-generated-runtime-dockerized.sh
+++ b/hack/update-generated-runtime-dockerized.sh
@@ -29,7 +29,7 @@ runtime_versions=("v1alpha2" "v1")
 
 kube::golang::setup_env
 
-go install k8s.io/kubernetes/vendor/k8s.io/code-generator/cmd/go-to-protobuf/protoc-gen-gogo
+GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/go-to-protobuf/protoc-gen-gogo
 
 if [[ -z "$(which protoc)" || "$(protoc --version)" != "libprotoc 3."* ]]; then
   echo "Generating protobuf requires protoc 3.0.0-beta1 or newer. Please download and"
diff --git a/hack/update-generated-swagger-docs.sh b/hack/update-generated-swagger-docs.sh
index 33bc54fd366..ba5c7c4edec 100755
--- a/hack/update-generated-swagger-docs.sh
+++ b/hack/update-generated-swagger-docs.sh
@@ -36,7 +36,7 @@ for group_version in "${GROUP_VERSIONS[@]}"; do
   rm -f "$(kube::util::group-version-to-pkg-path "${group_version}")/types_swagger_doc_generated.go"
 done
 # ensure we have the latest genswaggertypedocs built
-go install k8s.io/kubernetes/cmd/genswaggertypedocs
+GO111MODULE=on GOPROXY=off go install k8s.io/kubernetes/cmd/genswaggertypedocs
 for group_version in "${GROUP_VERSIONS[@]}"; do
   kube::swagger::gen_types_swagger_doc "${group_version}" "$(kube::util::group-version-to-pkg-path "${group_version}")"
 done
diff --git a/hack/verify-import-boss.sh b/hack/verify-import-boss.sh
index cefd33eee0c..8c4e39672af 100755
--- a/hack/verify-import-boss.sh
+++ b/hack/verify-import-boss.sh
@@ -28,7 +28,7 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 
 kube::golang::setup_env
 
-go install k8s.io/kubernetes/vendor/k8s.io/code-generator/cmd/import-boss
+GO111MODULE=on GOPROXY=off go install k8s.io/code-generator/cmd/import-boss
 
 packages=(
   "k8s.io/kubernetes/pkg/..."