diff --git a/.golangci.yml b/.golangci.yml
index 5c7862ff5..0b6333297 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -5,6 +5,7 @@ linters:
   disable-all: true
   enable:
     - deadcode
+    - errcheck
     - errorlint
     - goconst
     - gocyclo
@@ -16,12 +17,15 @@ linters:
     - ineffassign
     - misspell
     - nakedret
+    - nilerr
     - prealloc
     - revive
     - staticcheck
     - structcheck
+    - typecheck
     - unconvert
     - unused
     - varcheck
+    - whitespace
   # Run with --fast=false for more extensive checks
   fast: true
diff --git a/cmd/proxy/main.go b/cmd/proxy/main.go
index 62897c8ab..9cda9560d 100644
--- a/cmd/proxy/main.go
+++ b/cmd/proxy/main.go
@@ -57,7 +57,7 @@ func (p *proxy) writeResponse(w http.ResponseWriter, res *http.Response) {
 	// Set a special header to notify that the proxy actually serviced the request.
 	w.Header().Set("Server", "pi-sidecar-proxy")
 	w.WriteHeader(res.StatusCode)
-	io.Copy(w, res.Body)
+	_, _ = io.Copy(w, res.Body)
 	res.Body.Close()
 
 	klog.InfoS("request complete", "status", res.StatusCode)
diff --git a/cmd/webhook/main.go b/cmd/webhook/main.go
index 7036c831a..e4523350b 100644
--- a/cmd/webhook/main.go
+++ b/cmd/webhook/main.go
@@ -61,7 +61,6 @@ func init() {
 }
 
 func main() {
-
 	// TODO (aramase) once webhook is added as an arc extension, use extension
 	// util to check if running in arc cluster.
 	flag.BoolVar(&arcCluster, "arc-cluster", false, "Running on arc cluster")