diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cc990e4..19553e8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.13.x]
+        go-version: [1.13.x, 1.14.x]
         platform: [ubuntu-latest]
     runs-on: ${{ matrix.platform }}
     steps:
@@ -53,7 +53,7 @@ jobs:
   lint:
     strategy:
       matrix:
-        go-version: [1.13.x]
+        go-version: [1.14.x]
         platform: [ubuntu-latest]
     runs-on: ${{ matrix.platform }}
     steps:
@@ -77,7 +77,7 @@ jobs:
   thirdparty:
     strategy:
       matrix:
-        go-version: [1.13.x]
+        go-version: [1.13.x, 1.14.x]
         platform: [ubuntu-latest]
     runs-on: ${{ matrix.platform }}
     steps:
diff --git a/.golangci.yml b/.golangci.yml
index 2dbc993..a645a3e 100644
--- a/.golangci.yml
+++ b/.golangci.yml
@@ -9,6 +9,9 @@ linters:
   - unparam
   - gochecknoglobals
   - gochecknoinits
+  - gomnd
+  - wsl
+  - godox
 
 linters-settings:
   depguard:
diff --git a/go.mod b/go.mod
index 013697f..f1f0d63 100644
--- a/go.mod
+++ b/go.mod
@@ -4,5 +4,5 @@ go 1.11
 
 require (
 	golang.org/x/arch v0.0.0-20190909030613-46d78d1859ac
-	golang.org/x/tools v0.0.0-20190914235951-31e00f45c22e
+	golang.org/x/tools v0.0.0-20200425043458-8463f397d07c
 )
diff --git a/go.sum b/go.sum
index 24920a3..74fa16e 100644
--- a/go.sum
+++ b/go.sum
@@ -1,12 +1,25 @@
+github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 golang.org/x/arch v0.0.0-20190909030613-46d78d1859ac h1:YcaRWbSY2VfP0/k25uHKKrk3Vs3C7mo03vq103Ire8E=
 golang.org/x/arch v0.0.0-20190909030613-46d78d1859ac/go.mod h1:flIaEI6LNU6xOCD5PaJvn9wGP0agmIOqjrtsKGRguv4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/tools v0.0.0-20190914235951-31e00f45c22e h1:nOOVVcLC+/3MeovP40q5lCiWmP1Z1DaN8yn8ngU63hw=
 golang.org/x/tools v0.0.0-20190914235951-31e00f45c22e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.0.0-20200425043458-8463f397d07c h1:iHhCR0b26amDCiiO+kBguKZom9aMF+NrFxh9zeKR/XU=
+golang.org/x/tools v0.0.0-20200425043458-8463f397d07c/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 rsc.io/pdf v0.1.1 h1:k1MczvYDUvJBe93bYd7wrZLLUEcLZAuF824/I4e5Xr4=
 rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
diff --git a/gotypes/signature_test.go b/gotypes/signature_test.go
index a90f652..91e688a 100644
--- a/gotypes/signature_test.go
+++ b/gotypes/signature_test.go
@@ -51,7 +51,7 @@ func TestLookupSignatureErrors(t *testing.T) {
 func LoadPackageTypes(t *testing.T, path string) *types.Package {
 	t.Helper()
 	cfg := &packages.Config{
-		Mode: packages.NeedTypes,
+		Mode: packages.NeedTypes | packages.NeedDeps | packages.NeedImports,
 	}
 	pkgs, err := packages.Load(cfg, path)
 	if err != nil {
diff --git a/script/bootstrap b/script/bootstrap
index 5b043c8..5331338 100755
--- a/script/bootstrap
+++ b/script/bootstrap
@@ -7,7 +7,7 @@ go mod download
 go install ./internal/cmd/asmdecl
 
 # Install golangci-lint
-golangci_lint_version='v1.18.0'
+golangci_lint_version='v1.23.6'
 curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $GOPATH/bin ${golangci_lint_version}
 
 # Turn off modules for tools install.