diff --git a/Gopkg.lock b/Gopkg.lock
index a7bab94b..4167c102 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -966,7 +966,7 @@
 
 [[projects]]
   branch = "master"
-  digest = "1:7912249df5f43ca10fa1c3f8a3febdc3c0f7b320698787fa73c9fb1920a832d6"
+  digest = "1:9a3d6a5933182bb0ac923b36a7e581b19ea23edeb6684eabe14002758cd7b067"
   name = "knative.dev/pkg"
   packages = [
     "apis",
@@ -986,18 +986,18 @@
     "reconciler",
   ]
   pruneopts = "T"
-  revision = "0840da9555a3a75f801abc1d654fb00dfe9a687a"
+  revision = "9f9f7bea94e15840f36f08b90a2c03203e886f91"
 
 [[projects]]
   branch = "master"
-  digest = "1:3f2366ce9a05503ac8da902b58e898c285cc9a972e0e89fda0b2a2fedcd4fb46"
+  digest = "1:2987a1db00b983af9e5d5281639a754fb6449eef01e6a375894829eaec17cb2a"
   name = "knative.dev/test-infra"
   packages = [
     "scripts",
     "tools/dep-collector",
   ]
   pruneopts = "UT"
-  revision = "0042e9ca752c8339c3c245e1d2c76b891a144b7e"
+  revision = "9a501343b4dafbac1a1a5dcfe2cb46975a78abb5"
 
 [[projects]]
   digest = "1:8730e0150dfb2b7e173890c8b9868e7a273082ef8e39f4940e3506a481cf895c"
diff --git a/vendor/knative.dev/pkg/kvstore/kvstore.go b/vendor/knative.dev/pkg/kvstore/kvstore.go
new file mode 100644
index 00000000..be8ed2b6
--- /dev/null
+++ b/vendor/knative.dev/pkg/kvstore/kvstore.go
@@ -0,0 +1,35 @@
+/*
+Copyright 2020 The Knative Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package kvstore
+
+import (
+	"context"
+)
+
+type Interface interface {
+	// Init loads the configstore from the backing store if it exists, or
+	// if it does not, will create an empty one.
+	Init(ctx context.Context) error
+	// Load loads the configstore from the backing store
+	Load(ctx context.Context) error
+	// Save saves the configstore to the backing store
+	Save(ctx context.Context) error
+	// Get gets the key from the KVStore into the provided value
+	Get(ctx context.Context, key string, value interface{}) error
+	// Set sets the key into the KVStore from the provided value
+	Set(ctx context.Context, key string, value interface{}) error
+}
diff --git a/vendor/knative.dev/pkg/kvstore/kvstore_cm.go b/vendor/knative.dev/pkg/kvstore/kvstore_cm.go
new file mode 100644
index 00000000..c4e1a6e8
--- /dev/null
+++ b/vendor/knative.dev/pkg/kvstore/kvstore_cm.go
@@ -0,0 +1,123 @@
+/*
+Copyright 2020 The Knative Authors
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    https://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+// Simple abstraction for storing state on a k8s ConfigMap. Very very simple
+// and uses a single entry in the ConfigMap.data for storing serialized
+// JSON of the generic data that Load/Save uses. Handy for things like sources
+// that need to persist some state (checkpointing for example).
+package kvstore
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+
+	corev1 "k8s.io/api/core/v1"
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	v1 "k8s.io/client-go/kubernetes/typed/core/v1"
+	"knative.dev/pkg/logging"
+)
+
+type configMapKVStore struct {
+	cmClient  v1.ConfigMapInterface
+	name      string
+	namespace string
+	data      map[string]string
+}
+
+var (
+	_ Interface = (*configMapKVStore)(nil)
+)
+
+func NewConfigMapKVStore(ctx context.Context, name string, namespace string, clientset v1.CoreV1Interface) Interface {
+
+	return &configMapKVStore{name: name, namespace: namespace, cmClient: clientset.ConfigMaps(namespace)}
+}
+
+// Init initializes configMapKVStore either by loading or creating an empty one.
+func (cs *configMapKVStore) Init(ctx context.Context) error {
+	l := logging.FromContext(ctx)
+	l.Info("Initializing configMapKVStore...")
+
+	err := cs.Load(ctx)
+	if apierrors.IsNotFound(err) {
+		l.Info("No config found, creating empty")
+		return cs.createConfigMap()
+	}
+	return err
+}
+
+// Load fetches the ConfigMap from k8s and unmarshals the data found
+// in the configdatakey type as specified by value.
+func (cs *configMapKVStore) Load(ctx context.Context) error {
+	cm, err := cs.cmClient.Get(cs.name, metav1.GetOptions{})
+	if err != nil {
+		return err
+	}
+	cs.data = cm.Data
+	return nil
+}
+
+// Save takes the value given in, and marshals it into a string
+// and saves it into the k8s ConfigMap under the configdatakey.
+func (cs *configMapKVStore) Save(ctx context.Context) error {
+	cm, err := cs.cmClient.Get(cs.name, metav1.GetOptions{})
+	if err != nil {
+		return err
+	}
+	cm.Data = cs.data
+	_, err = cs.cmClient.Update(cm)
+	return err
+}
+
+// Get retrieves and unmarshals the value from the map.
+func (cs *configMapKVStore) Get(ctx context.Context, key string, value interface{}) error {
+	v, ok := cs.data[key]
+	if !ok {
+		return fmt.Errorf("key %s does not exist", key)
+	}
+	err := json.Unmarshal([]byte(v), value)
+	if err != nil {
+		return fmt.Errorf("Failed to Unmarshal %q: %v", v, err)
+	}
+	return nil
+}
+
+// Set marshals and sets the value given under specified key.
+func (cs *configMapKVStore) Set(ctx context.Context, key string, value interface{}) error {
+	bytes, err := json.Marshal(value)
+	if err != nil {
+		return fmt.Errorf("Failed to Marshal: %v", err)
+	}
+	cs.data[key] = string(bytes)
+	return nil
+}
+
+func (cs *configMapKVStore) createConfigMap() error {
+	cm := &corev1.ConfigMap{
+		TypeMeta: metav1.TypeMeta{
+			APIVersion: "v1",
+			Kind:       "ConfigMap",
+		},
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      cs.name,
+			Namespace: cs.namespace,
+		},
+	}
+	_, err := cs.cmClient.Create(cm)
+	return err
+}
diff --git a/vendor/knative.dev/test-infra/scripts/library.sh b/vendor/knative.dev/test-infra/scripts/library.sh
index 3d227571..434deda2 100755
--- a/vendor/knative.dev/test-infra/scripts/library.sh
+++ b/vendor/knative.dev/test-infra/scripts/library.sh
@@ -482,7 +482,19 @@ function run_go_tool() {
   if [[ -z "$(which ${tool})" ]]; then
     local action=get
     [[ $1 =~ ^[\./].* ]] && action=install
-    go ${action} $1
+    # Avoid running `go get` from root dir of the repository, as it can change go.sum and go.mod files.
+    # See discussions in https://github.com/golang/go/issues/27643.
+    if [[ ${action} == "get" && $(pwd) == "${REPO_ROOT_DIR}" ]]; then
+      local temp_dir="$(mktemp -d)"
+      local install_failed=0
+      # Swallow the output as we are returning the stdout in the end.
+      pushd "${temp_dir}" > /dev/null 2>&1
+      go ${action} $1 || install_failed=1
+      popd > /dev/null 2>&1
+      (( install_failed )) && return ${install_failed}
+    else
+      go ${action} $1
+    fi
   fi
   shift 2
   ${tool} "$@"