diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 141c990e6728..6311caa774f4 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -26,7 +26,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.14 # test only the latest go version to speed up CI
+          go-version: 1.15 # test only the latest go version to speed up CI
       - name: Run tests
         run: make.exe test
         continue-on-error: true
@@ -38,7 +38,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.14 # test only the latest go version to speed up CI
+          go-version: 1.15 # test only the latest go version to speed up CI
       - name: Run tests
         run: make test
         continue-on-error: true
@@ -50,6 +50,7 @@ jobs:
         golang:
           - 1.13
           - 1.14
+          - 1.15
     steps:
       - uses: actions/checkout@v2
       - name: Install Go
@@ -77,6 +78,6 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.14
+          go-version: 1.15
       - name: Check generated files are up to date
         run: make fast_check_generated
diff --git a/.github/workflows/tag.yml b/.github/workflows/tag.yml
index 2ef7e44bd8d2..ed70cc6fa13e 100644
--- a/.github/workflows/tag.yml
+++ b/.github/workflows/tag.yml
@@ -14,7 +14,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.14
+          go-version: 1.15
       - name: Unshallow
         run: git fetch --prune --unshallow
       - name: Login do docker.io
diff --git a/build/Dockerfile b/build/Dockerfile
index 834a06103f6b..2bee70587c61 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.14
+FROM golang:1.15
 
 # don't place it into $GOPATH/bin because Drone mounts $GOPATH as volume
 COPY golangci-lint /usr/bin/
diff --git a/build/Dockerfile.alpine b/build/Dockerfile.alpine
index 61067b141d4d..b9c34e0a4386 100644
--- a/build/Dockerfile.alpine
+++ b/build/Dockerfile.alpine
@@ -1,4 +1,4 @@
-FROM golang:1.14-alpine
+FROM golang:1.15-alpine
 
 # gcc is required to support cgo;
 # git and mercurial are needed most times for go get`, etc.
diff --git a/test/enabled_linters_test.go b/test/enabled_linters_test.go
index 702df9be7f1d..70cb4ffc47c2 100644
--- a/test/enabled_linters_test.go
+++ b/test/enabled_linters_test.go
@@ -176,7 +176,7 @@ func TestEnabledLinters(t *testing.T) {
 		t.Run(c.name, func(t *testing.T) {
 			t.Parallel()
 
-			runArgs := []string{"-v"}
+			runArgs := []string{"--verbose"}
 			if !c.noImplicitFast {
 				runArgs = append(runArgs, "--fast")
 			}
diff --git a/test/testdata/nolintlint_unused.go b/test/testdata/nolintlint_unused.go
index 184a2116892f..f9d7b41f235a 100644
--- a/test/testdata/nolintlint_unused.go
+++ b/test/testdata/nolintlint_unused.go
@@ -5,7 +5,7 @@ package testdata
 import "fmt"
 
 func Foo() {
-	fmt.Println("unused")          //nolint // ERROR "directive `//nolint .*` is unused"
-	fmt.Println("unused,specific") //nolint:varcheck // ERROR "directive `//nolint:varcheck .*` is unused for linter varcheck"
-	fmt.Println("not run")         //nolint:unparam // unparam is not run so this is ok
+	fmt.Println("unused")          // nolint // ERROR "directive `//nolint .*` is unused"
+	fmt.Println("unused,specific") // nolint:varcheck // ERROR "directive `//nolint:varcheck .*` is unused for linter varcheck"
+	fmt.Println("not run")         // nolint:unparam // unparam is not run so this is ok
 }