diff --git a/Dockerfile b/Dockerfile
index b76562e27..da5625bf4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@
 # 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.
-FROM golang:1.14.4
+FROM golang:1.15.0
 
 WORKDIR /go/src/sigs.k8s.io/descheduler
 COPY . .
diff --git a/Makefile b/Makefile
index d90c2bff4..ec7757d09 100644
--- a/Makefile
+++ b/Makefile
@@ -22,7 +22,7 @@ LDFLAG_LOCATION=sigs.k8s.io/descheduler/cmd/descheduler/app
 
 LDFLAGS=-ldflags "-X ${LDFLAG_LOCATION}.version=${VERSION} -X ${LDFLAG_LOCATION}.buildDate=${BUILD} -X ${LDFLAG_LOCATION}.gitCommit=${COMMIT}"
 
-GOLANGCI_VERSION := v1.15.0
+GOLANGCI_VERSION := v1.30.0
 HAS_GOLANGCI := $(shell ls _output/bin/golangci-lint)
 
 # REGISTRY is the container registry to push
diff --git a/docs/contributor-guide.md b/docs/contributor-guide.md
index 0d747b891..c9df10548 100644
--- a/docs/contributor-guide.md
+++ b/docs/contributor-guide.md
@@ -3,7 +3,7 @@
 ## Required Tools
 
 - [Git](https://git-scm.com/downloads)
-- [Go 1.14+](https://golang.org/dl/)
+- [Go 1.15+](https://golang.org/dl/)
 - [Docker](https://docs.docker.com/install/)
 - [kubectl](https://kubernetes.io/docs/tasks/tools/install-kubectl)
 - [kind](https://kind.sigs.k8s.io/)
@@ -40,4 +40,4 @@ make test-e2e
 ```
 
 ### Miscellaneous
-See the [hack directory](https://github.com/kubernetes-sigs/descheduler/tree/master/hack) for additional tools and scripts used for developing the descheduler.
\ No newline at end of file
+See the [hack directory](https://github.com/kubernetes-sigs/descheduler/tree/master/hack) for additional tools and scripts used for developing the descheduler.
diff --git a/go.mod b/go.mod
index 51642faeb..17da5bd15 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module sigs.k8s.io/descheduler
 
-go 1.14
+go 1.15
 
 require (
 	github.com/spf13/cobra v0.0.5
diff --git a/hack/update-gofmt.sh b/hack/update-gofmt.sh
index 3b843c28b..927d76d72 100755
--- a/hack/update-gofmt.sh
+++ b/hack/update-gofmt.sh
@@ -23,7 +23,7 @@ DESCHEDULER_ROOT=$(dirname "${BASH_SOURCE}")/..
 
 GO_VERSION=($(go version))
 
-if [[ -z $(echo "${GO_VERSION[2]}" | grep -E 'go1.2|go1.3|go1.4|go1.5|go1.6|go1.7|go1.8|go1.9|go1.10|go1.11|go1.12|go1.13|go1.14') ]]; then
+if [[ -z $(echo "${GO_VERSION[2]}" | grep -E 'go1.13|go1.14|go1.15') ]]; then
   echo "Unknown go version '${GO_VERSION[2]}', skipping gofmt."
   exit 1
 fi
diff --git a/hack/verify-gofmt.sh b/hack/verify-gofmt.sh
index 87f65e370..fb2102491 100755
--- a/hack/verify-gofmt.sh
+++ b/hack/verify-gofmt.sh
@@ -23,7 +23,7 @@ DESCHEDULER_ROOT=$(dirname "${BASH_SOURCE}")/..
 
 GO_VERSION=($(go version))
 
-if [[ -z $(echo "${GO_VERSION[2]}" | grep -E 'go1.2|go1.3|go1.4|go1.5|go1.6|go1.7|go1.8|go1.9|go1.10|go1.11|go1.12|go1.13|go1.14') ]]; then
+if [[ -z $(echo "${GO_VERSION[2]}" | grep -E 'go1.13|go1.14|go1.15') ]]; then
   echo "Unknown go version '${GO_VERSION[2]}', skipping gofmt."
   exit 1
 fi
diff --git a/pkg/descheduler/node/node_test.go b/pkg/descheduler/node/node_test.go
index 95af44ad9..a5f1829e8 100644
--- a/pkg/descheduler/node/node_test.go
+++ b/pkg/descheduler/node/node_test.go
@@ -20,7 +20,7 @@ import (
 	"context"
 	"testing"
 
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/client-go/informers"
 	"k8s.io/client-go/kubernetes/fake"
@@ -69,7 +69,7 @@ func TestReadyNodesWithNodeSelector(t *testing.T) {
 	sharedInformerFactory := informers.NewSharedInformerFactory(fakeClient, 0)
 	nodeInformer := sharedInformerFactory.Core().V1().Nodes()
 
-	stopChannel := make(chan struct{}, 0)
+	stopChannel := make(chan struct{})
 	sharedInformerFactory.Start(stopChannel)
 	sharedInformerFactory.WaitForCacheSync(stopChannel)
 	defer close(stopChannel)
diff --git a/test/e2e/e2e_test.go b/test/e2e/e2e_test.go
index eaea2d69d..5d6b97924 100644
--- a/test/e2e/e2e_test.go
+++ b/test/e2e/e2e_test.go
@@ -144,7 +144,7 @@ func initializeClient(t *testing.T) (clientset.Interface, coreinformers.NodeInfo
 		t.Errorf("Error during client creation with %v", err)
 	}
 
-	stopChannel := make(chan struct{}, 0)
+	stopChannel := make(chan struct{})
 
 	sharedInformerFactory := informers.NewSharedInformerFactory(clientSet, 0)
 	sharedInformerFactory.Start(stopChannel)