diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ae213c014..a6e76792e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v2
       with:
-        go-version: 1.17.*
+        go-version: 1.18.8
 
     - name: Dependencies
       run: |
@@ -39,7 +39,7 @@ jobs:
         DCO_VERBOSITY=-q script/validate/dco
         GO111MODULE=on script/setup/install-dev-tools
         script/validate/vendor
-        go build -i .
+        go build .
         make check
         make build
         make binaries
diff --git a/Dockerfile b/Dockerfile
index 2fd743b61..bfa4a694a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-ARG GO_VERSION=1.17
+ARG GO_VERSION=1.18.8
 ARG ALPINE_VERSION=3.16
 ARG XX_VERSION=1.1.1
 
diff --git a/Makefile b/Makefile
index 331da2732..75e118201 100644
--- a/Makefile
+++ b/Makefile
@@ -50,7 +50,7 @@ version/version.go:
 
 check: ## run all linters (TODO: enable "unused", "varcheck", "ineffassign", "unconvert", "staticheck", "goimports", "structcheck")
 	@echo "$(WHALE) $@"
-	golangci-lint run
+	@GO111MODULE=off golangci-lint run
 
 test: ## run tests, except integration test with test.short
 	@echo "$(WHALE) $@"
diff --git a/context/http.go b/context/http.go
index bc22f0bba..48e354865 100644
--- a/context/http.go
+++ b/context/http.go
@@ -246,11 +246,7 @@ func (ctx *muxVarsContext) Value(key interface{}) interface{} {
 			return ctx.vars
 		}
 
-		if strings.HasPrefix(keyStr, "vars.") {
-			keyStr = strings.TrimPrefix(keyStr, "vars.")
-		}
-
-		if v, ok := ctx.vars[keyStr]; ok {
+		if v, ok := ctx.vars[strings.TrimPrefix(keyStr, "vars.")]; ok {
 			return v
 		}
 	}
diff --git a/project/dev-image/Dockerfile b/project/dev-image/Dockerfile
index 1e2a8471c..ec404a9f5 100644
--- a/project/dev-image/Dockerfile
+++ b/project/dev-image/Dockerfile
@@ -17,4 +17,4 @@ RUN wget https://golang.org/dl/go$GOLANG_VERSION.linux-amd64.tar.gz --quiet && \
   tar -C /usr/local -xzf go$GOLANG_VERSION.linux-amd64.tar.gz && \
   rm go${GOLANG_VERSION}.linux-amd64.tar.gz
 
-RUN go get github.com/axw/gocov/gocov github.com/mattn/goveralls github.com/golang/lint/golint
+RUN go install github.com/axw/gocov/gocov@latest github.com/mattn/goveralls@latest github.com/golang/lint/golint@latest
diff --git a/registry/client/repository.go b/registry/client/repository.go
index 3e2ae66d3..04e5a3ba0 100644
--- a/registry/client/repository.go
+++ b/registry/client/repository.go
@@ -114,9 +114,7 @@ func (r *registry) Repositories(ctx context.Context, entries []string, last stri
 			return 0, err
 		}
 
-		for cnt := range ctlg.Repositories {
-			entries[cnt] = ctlg.Repositories[cnt]
-		}
+		copy(entries, ctlg.Repositories)
 		numFilled = len(ctlg.Repositories)
 
 		link := resp.Header.Get("Link")
diff --git a/script/setup/install-dev-tools b/script/setup/install-dev-tools
index f01c370e9..7737836bb 100755
--- a/script/setup/install-dev-tools
+++ b/script/setup/install-dev-tools
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 
-GOLANGCI_LINT_VERSION="v1.27.0"
+GOLANGCI_LINT_VERSION="v1.50.1"
 
 #
 # Install developer tools to $GOBIN (or $GOPATH/bin if unset)
@@ -8,5 +8,5 @@ GOLANGCI_LINT_VERSION="v1.27.0"
 set -eu -o pipefail
 
 cd /tmp
-go get -u github.com/LK4D4/vndr
-go get "github.com/golangci/golangci-lint/cmd/golangci-lint@${GOLANGCI_LINT_VERSION}"
+go install github.com/LK4D4/vndr@latest
+go install "github.com/golangci/golangci-lint/cmd/golangci-lint@${GOLANGCI_LINT_VERSION}"
diff --git a/version/version.sh b/version/version.sh
index 75dca7847..dd8296968 100755
--- a/version/version.sh
+++ b/version/version.sh
@@ -17,7 +17,7 @@ var Package = "$(go list)"
 // Version indicates which version of the binary is running. This is set to
 // the latest release tag by hand, always suffixed by "+unknown". During
 // build, it will be replaced by the actual version. The value here will be
-// used if the registry is run after a go get based install.
+// used if the registry is run after a go install based install.
 var Version = "$(git describe --match 'v[0-9]*' --dirty='.m' --always)+unknown"
 
 // Revision is filled with the VCS (e.g. git) revision being used to build